# Bug Reports **URL:** https://prepomax.discourse.group/c/bug-reports/8.md?page=3 [Latest](https://prepomax.discourse.group/latest.md) · [Categories](https://prepomax.discourse.group/categories.md) · [Tags](https://prepomax.discourse.group/tags.md) **Page:** 4 --- ## [Internal array cannot expand to greater than int32.MaxValue elements](https://prepomax.discourse.group/t/internal-array-cannot-expand-to-greater-than-int32-maxvalue-elements/2791)
**Author:** [@Paul18fr](https://prepomax.discourse.group/u/Paul18fr)\ **Replies:** 4\ **Last updated:** [October 15, 2025, 2:49pm UTC](https://prepomax.discourse.group/t/internal-array-cannot-expand-to-greater-than-int32-maxvalue-elements/2791 "2025-10-15T14:49:08Z")
Hi I was playing with Non-linear buckling tutorial ; everything went well except when I wanted to “save” resuls - see screenshot Note I ran the FEA twice (in case of file corruption); I used the latest dev release. … --- ## [FRD does not open when requesting output for specific nset](https://prepomax.discourse.group/t/frd-does-not-open-when-requesting-output-for-specific-nset/2773)
**Author:** [@Yorch70](https://prepomax.discourse.group/u/Yorch70)\ **Replies:** 6\ **Last updated:** [October 15, 2025, 2:48pm UTC](https://prepomax.discourse.group/t/frd-does-not-open-when-requesting-output-for-specific-nset/2773 "2025-10-15T14:48:56Z")
Hi everyone, I’m facing troubles when opening an frd in prepomax. This problem is related with the request of element output for an specific node set. I’m using the following line in the .inp: \*elfile, nset=nall s,sdv… --- ## [Potential Bug Applying Radial Displacement to Rigid Surface](https://prepomax.discourse.group/t/potential-bug-applying-radial-displacement-to-rigid-surface/2963)
**Author:** [@GB61](https://prepomax.discourse.group/u/GB61)\ **Replies:** 6\ **Last updated:** [October 9, 2025, 1:21pm UTC](https://prepomax.discourse.group/t/potential-bug-applying-radial-displacement-to-rigid-surface/2963 "2025-10-09T13:21:04Z")
I have applied Radial Displacements to parts of a model. The boundary constraint symbols point in the correct directions, but when the analysis is run, the displacements are applied relative to the global coordinate syst… --- ## [Errors during compound part operation](https://prepomax.discourse.group/t/errors-during-compound-part-operation/2887)
**Author:** [@lukerickert](https://prepomax.discourse.group/u/lukerickert)\ **Replies:** 2\ **Last updated:** [October 9, 2025, 1:18pm UTC](https://prepomax.discourse.group/t/errors-during-compound-part-operation/2887 "2025-10-09T13:18:37Z")
I am getting some errors making compound surface parts. It seems fairly random from what I can tell. --- ## [Text in results window appears dimmed after downloading version 2.3.9dev](https://prepomax.discourse.group/t/text-in-results-window-appears-dimmed-after-downloading-version-2-3-9dev/2970)
**Author:** [@FdoLorenzo](https://prepomax.discourse.group/u/FdoLorenzo)\ **Replies:** 9\ **Last updated:** [October 1, 2025, 6:46pm UTC](https://prepomax.discourse.group/t/text-in-results-window-appears-dimmed-after-downloading-version-2-3-9dev/2970 "2025-10-01T18:46:20Z")
I am running Windows 11 on a Microsoft Surface 11 pro. This is the version with the ARM processor. The app runs perfect but when I go to the results window the text is dimmed and not sharp as in my other computer that h… --- ## [Cirle center by 3 points / Between two points](https://prepomax.discourse.group/t/cirle-center-by-3-points-between-two-points/2984)
**Author:** [@Vitek\_SAA](https://prepomax.discourse.group/u/Vitek_SAA)\ **Replies:** 3\ **Last updated:** [September 26, 2025, 8:23am UTC](https://prepomax.discourse.group/t/cirle-center-by-3-points-between-two-points/2984 "2025-09-26T08:23:59Z")
When creating a Reference Point and choosing either Circle Center by 3 Points or Between 2 Points, there is no option to select the required nodes/points. This functionality is expected, as in other operations such as Pa… --- ## [Results not updated](https://prepomax.discourse.group/t/results-not-updated/2915)
**Author:** [@ANYS](https://prepomax.discourse.group/u/ANYS)\ **Replies:** 3\ **Last updated:** [September 9, 2025, 8:09am UTC](https://prepomax.discourse.group/t/results-not-updated/2915 "2025-09-09T08:09:26Z")
V.2.3.8 When Navigating through the different results, the titles change but not the value. --- ## [Performance Issue When Importing Large .inp File with STEP Command](https://prepomax.discourse.group/t/performance-issue-when-importing-large-inp-file-with-step-command/2908)
**Author:** [@Mesab](https://prepomax.discourse.group/u/Mesab)\ **Replies:** 12\ **Last updated:** [September 9, 2025, 6:27am UTC](https://prepomax.discourse.group/t/performance-issue-when-importing-large-inp-file-with-step-command/2908 "2025-09-09T06:27:12Z")
Dear PrePoMax team, I’m experiencing a performance issue when importing a large .inp file (around 100,000 elements). PrePoMax reads the file correctly, but the import takes a very long time only when the \*STEP section i… --- ## [Failed to re-open pmx file after save the file](https://prepomax.discourse.group/t/failed-to-re-open-pmx-file-after-save-the-file/2880)
**Author:** [@Guslan](https://prepomax.discourse.group/u/Guslan)\ **Replies:** 4\ **Last updated:** [July 26, 2025, 1:06am UTC](https://prepomax.discourse.group/t/failed-to-re-open-pmx-file-after-save-the-file/2880 "2025-07-26T01:06:08Z")
Dear Sir, I was failed to open my pmx file eventhough i can save it last time with successfull result. after that i switch to open the frd file (WA480-8) & it successfully open, i can now see my previous analysis. N… --- ## [Calculix Keyword Error in v.2.3.6](https://prepomax.discourse.group/t/calculix-keyword-error-in-v-2-3-6/2870)
**Author:** [@KilianK1](https://prepomax.discourse.group/u/KilianK1)\ **Replies:** 3\ **Last updated:** [July 25, 2025, 10:24am UTC](https://prepomax.discourse.group/t/calculix-keyword-error-in-v-2-3-6/2870 "2025-07-25T10:24:27Z")
Steps: Added CalculiX Keyword Ran Analysis (failed, no result) Model → Edit CalculiX Keywords Model: Composite\_Shell.pmx (1.3 MB) --- ## [Error while generating result animation](https://prepomax.discourse.group/t/error-while-generating-result-animation/2849)
**Author:** [@Rishabh](https://prepomax.discourse.group/u/Rishabh)\ **Replies:** 4\ **Last updated:** [July 16, 2025, 7:50am UTC](https://prepomax.discourse.group/t/error-while-generating-result-animation/2849 "2025-07-16T07:50:12Z")
Hello, I am getting this error while generating animation of my results. Link of the result file : Unique Download Link | WeTransfer I have used version 2.3 for performing simulation. I also tried the version 2.3.5… --- ## [Results file not loading](https://prepomax.discourse.group/t/results-file-not-loading/2741)
**Author:** [@belov](https://prepomax.discourse.group/u/belov)\ **Replies:** 10\ **Last updated:** [June 2, 2025, 8:30pm UTC](https://prepomax.discourse.group/t/results-file-not-loading/2741 "2025-06-02T20:30:51Z")
Results file not loading, ver.2.3.4dev. Ver 2.1.0 - ok And Run “History Outputs” - “Create” → Error Random\_vibration\_2.pmx (5.3 MB) --- ## [Long time animation cause program crashed](https://prepomax.discourse.group/t/long-time-animation-cause-program-crashed/2730)
**Author:** [@arthur314](https://prepomax.discourse.group/u/arthur314)\ **Replies:** 2\ **Last updated:** [May 26, 2025, 6:04pm UTC](https://prepomax.discourse.group/t/long-time-animation-cause-program-crashed/2730 "2025-05-26T18:04:44Z")
Running the animation for a long time, the program crashed --- ## [Behavior of the delete button "User Keywords"](https://prepomax.discourse.group/t/behavior-of-the-delete-button-user-keywords/2734)
**Author:** [@belov](https://prepomax.discourse.group/u/belov)\ **Replies:** 2\ **Last updated:** [May 28, 2025, 12:48pm UTC](https://prepomax.discourse.group/t/behavior-of-the-delete-button-user-keywords/2734 "2025-05-28T12:48:32Z")
When you click the “User Keywords” delete button, the “Calculix keyword editor” window closes (version 2.3.2 dev). However, in versions 1.1-1.4 everything works fine. --- ## [Step not being completely imported (PTC Modeling)](https://prepomax.discourse.group/t/step-not-being-completely-imported-ptc-modeling/2588)
**Author:** [@AsuraEquation](https://prepomax.discourse.group/u/AsuraEquation)\ **Replies:** 4\ **Last updated:** [May 26, 2025, 5:52pm UTC](https://prepomax.discourse.group/t/step-not-being-completely-imported-ptc-modeling/2588 "2025-05-26T17:52:22Z")
I noticed by doing some tests with models created in PTC Modeling that not all the elements of the .step file are imported, this even if the model is very simple (generally only one of the components is imported). Unfor… --- ## [Settings - Graphics Background](https://prepomax.discourse.group/t/settings-graphics-background/2714)
**Author:** [@arnie](https://prepomax.discourse.group/u/arnie)\ **Replies:** 2\ **Last updated:** [May 18, 2025, 2:58pm UTC](https://prepomax.discourse.group/t/settings-graphics-background/2714 "2025-05-18T14:58:30Z")
In the settings menu of this latest version 2.3.3, I am no longer able to change the backgound to a different option. --- ## [Error \*END STEP while importing .inp file](https://prepomax.discourse.group/t/error-end-step-while-importing-inp-file/2669)
**Author:** [@Layson](https://prepomax.discourse.group/u/Layson)\ **Replies:** 13\ **Last updated:** [May 16, 2025, 9:25am UTC](https://prepomax.discourse.group/t/error-end-step-while-importing-inp-file/2669 "2025-05-16T09:25:54Z")
I am currently using PreProMax\_v2.3.0 to visualize some .inp files set by CGX and encounter the same error, described as the title, so I am reporting it using one .inp file for example. The .inp file and its include fil… --- ## [Error when importing a specific geometry](https://prepomax.discourse.group/t/error-when-importing-a-specific-geometry/2622)
**Author:** [@FEAnalyst](https://prepomax.discourse.group/u/FEAnalyst)\ **Replies:** 8\ **Last updated:** [May 16, 2025, 8:34am UTC](https://prepomax.discourse.group/t/error-when-importing-a-specific-geometry/2622 "2025-05-16T08:34:55Z")
Hi @Matej, one of my viewers said that he couldn’t import the geometry from the pressure vessel tutorial. I checked it and I have the same issue in v2.3.1. It shows this: 04/11/25 12:55:38 Error: The file C:\\Users\\ja… --- ## [Change the values of TypeEnum to all capitals](https://prepomax.discourse.group/t/change-the-values-of-typeenum-to-all-capitals/2626)
**Author:** [@Cean](https://prepomax.discourse.group/u/Cean)\ **Replies:** 5\ **Last updated:** [May 16, 2025, 8:32am UTC](https://prepomax.discourse.group/t/change-the-values-of-typeenum-to-all-capitals/2626 "2025-05-16T08:32:51Z")
Hi, I was trying to import an inp file. It has TOTALS = ONLY. But the program compares to ‘Only’. Suggesting to change the TypeEnum to all capitals. Also there is blank around = in TOTALS = ONLY in my file, so always … --- ## [Error and definition lost when import "inp" file that exported by PrePoMax](https://prepomax.discourse.group/t/error-and-definition-lost-when-import-inp-file-that-exported-by-prepomax/2647)
**Author:** [@leon](https://prepomax.discourse.group/u/leon)\ **Replies:** 12\ **Last updated:** [May 7, 2025, 2:45am UTC](https://prepomax.discourse.group/t/error-and-definition-lost-when-import-inp-file-that-exported-by-prepomax/2647 "2025-05-07T02:45:09Z")
I’m using PrePoMax v2.3.0, when I re-import the “inp” file that exported by the same version PrePoMax, an error window popup, and the " Initial Conditons" and " Centrifugal Load" are lost. This is the error window. T… --- ## [History outputs not highlighted when Pre-tension is involved](https://prepomax.discourse.group/t/history-outputs-not-highlighted-when-pre-tension-is-involved/2645)
**Author:** [@Gunnar](https://prepomax.discourse.group/u/Gunnar)\ **Replies:** 2\ **Last updated:** [April 24, 2025, 8:06pm UTC](https://prepomax.discourse.group/t/history-outputs-not-highlighted-when-pre-tension-is-involved/2645 "2025-04-24T20:06:45Z")
Normally, created history outputs are graphically highlighted in the result tab when selected/hovered with the cursor. However, as soon as pre-tension is involved, this no longer works. I don’t know if this is a known l… --- ## [2D axisymmetric Hydrostatic load not working properly](https://prepomax.discourse.group/t/2d-axisymmetric-hydrostatic-load-not-working-properly/939)
**Author:** [@imgprojts](https://prepomax.discourse.group/u/imgprojts)\ **Replies:** 6\ **Last updated:** [April 7, 2025, 3:34pm UTC](https://prepomax.discourse.group/t/2d-axisymmetric-hydrostatic-load-not-working-properly/939 "2025-04-07T15:34:12Z")
Here are demo files to show the bug 2D\_axisymmetric\_bug.zip (2.9 MB) The 3D version of the load seems to work just fine. However, the 2D axis symmetric version does not seem to work as desired. It seems to be 10 times … --- ## [Undesired cylindrical constraints behaviour - Hydrostatic Analysis](https://prepomax.discourse.group/t/undesired-cylindrical-constraints-behaviour-hydrostatic-analysis/2405)
**Author:** [@jeblais](https://prepomax.discourse.group/u/jeblais)\ **Replies:** 7\ **Last updated:** [April 4, 2025, 10:13am UTC](https://prepomax.discourse.group/t/undesired-cylindrical-constraints-behaviour-hydrostatic-analysis/2405 "2025-04-04T10:13:36Z")
Hello! First post here :slight\_smile: I have to say that I’m fairly new to PrePoMax/CalculiX but I love it! Thanks to the developpers for this free piece of software! I’m currently testing PrePoMax by comparing analysi… --- ## [Variable, Type and Factor options in Menu items not working on version 2.2.9 dev](https://prepomax.discourse.group/t/variable-type-and-factor-options-in-menu-items-not-working-on-version-2-2-9-dev/2406)
**Author:** [@FdoLorenzo](https://prepomax.discourse.group/u/FdoLorenzo)\ **Replies:** 12\ **Last updated:** [March 27, 2025, 6:42am UTC](https://prepomax.discourse.group/t/variable-type-and-factor-options-in-menu-items-not-working-on-version-2-2-9-dev/2406 "2025-03-27T06:42:14Z")
Dear colleagues, Not really a bug, somethings got disconnected in the menu options. I tried to adjust the Type menu option to try to see the true scale of the loaded model, but was not able to do it in the 2.2.9 dev ve… --- ## [Reference Points - Keep Defaulting to First Node\_Set](https://prepomax.discourse.group/t/reference-points-keep-defaulting-to-first-node-set/2394)
**Author:** [@arnie](https://prepomax.discourse.group/u/arnie)\ **Replies:** 6\ **Last updated:** [March 26, 2025, 7:26am UTC](https://prepomax.discourse.group/t/reference-points-keep-defaulting-to-first-node-set/2394 "2025-03-26T07:26:52Z")
In version 2.2.9, I seem to be having an issue in which all the Reference Points keep defaulting to the first Node\_Set. No matter how many times I change the selection; as soon as I close the window and re-open it, it is… --- ## [Error in Element Selection by Part for Compound Parts](https://prepomax.discourse.group/t/error-in-element-selection-by-part-for-compound-parts/2466)
**Author:** [@Luke.R](https://prepomax.discourse.group/u/Luke.R)\ **Replies:** 8\ **Last updated:** [March 25, 2025, 6:47pm UTC](https://prepomax.discourse.group/t/error-in-element-selection-by-part-for-compound-parts/2466 "2025-03-25T18:47:24Z")
I’ve noticed an issue in selection of elements with compound parts, where the element selection goes beyond the bounds of the selected part. It looks like the element selection is extending to elements which share common… --- ## [Bug importing INP file generated by pygccx library](https://prepomax.discourse.group/t/bug-importing-inp-file-generated-by-pygccx-library/2414)
**Author:** [@yvan](https://prepomax.discourse.group/u/yvan)\ **Replies:** 7\ **Last updated:** [March 25, 2025, 6:37pm UTC](https://prepomax.discourse.group/t/bug-importing-inp-file-generated-by-pygccx-library/2414 "2025-03-25T18:37:25Z")
Hello, I used pygccx library that generates INP file from .geo inpu and .stp model files. When importing INP in prepomax v2.2.0, I have two issues: the ‘Load\_surf’ surface is not correctly read. when editing a concen… --- ## [Duplicate tie pair causes model to become unusable](https://prepomax.discourse.group/t/duplicate-tie-pair-causes-model-to-become-unusable/2475)
**Author:** [@andnee](https://prepomax.discourse.group/u/andnee)\ **Replies:** 2\ **Last updated:** [March 24, 2025, 3:01pm UTC](https://prepomax.discourse.group/t/duplicate-tie-pair-causes-model-to-become-unusable/2475 "2025-03-24T15:01:18Z")
Hi @Matej, I still have the problem with duplicate entries in the contact pair (tie) window. If I search for contact pairs a second time (with different parts visible), it may happen that a duplicate occurs (because some… --- ## [Value cannot be null](https://prepomax.discourse.group/t/value-cannot-be-null/2398)
**Author:** [@andnee](https://prepomax.discourse.group/u/andnee)\ **Replies:** 5\ **Last updated:** [February 13, 2025, 9:55pm UTC](https://prepomax.discourse.group/t/value-cannot-be-null/2398 "2025-02-13T21:55:19Z")
Hi folks, Suddenly I have this error which comes and goes randomly Don’t really know what it is. I think it’s in ver.2.2.9 It comes when I use the ppm file directory as the work directory. I have it in a removabl… --- ## [Had problem with any version prepomax in windows 11](https://prepomax.discourse.group/t/had-problem-with-any-version-prepomax-in-windows-11/1775)
**Author:** [@kick25](https://prepomax.discourse.group/u/kick25)\ **Replies:** 24\ **Last updated:** [February 10, 2025, 5:37pm UTC](https://prepomax.discourse.group/t/had-problem-with-any-version-prepomax-in-windows-11/1775 "2025-02-10T17:37:06Z")
Hi . I had a huge problem with prepomax . Program works excelent for few days and suddenly stop. slplit out this fault [Previous page](https://prepomax.discourse.group/c/bug-reports/8.md?page=2) [Next page](https://prepomax.discourse.group/c/bug-reports/8.md?page=4)