# Corrupted .inp files in v1.4.1 **URL:** \ **Category:** Bug Reports\ **Created:** [September 15, 2023, 9:41pm UTC](https://prepomax.discourse.group/t/corrupted-inp-files-in-v1-4-1/1096 "2023-09-15T21:41:17Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Flare](https://avatars.discourse-cdn.com/v4/letter/f/c0e974/32.png) [@Flare](https://prepomax.discourse.group/u/Flare)\ **Post date:** [September 15, 2023, 9:41pm UTC](https://prepomax.discourse.group/t/corrupted-inp-files-in-v1-4-1/1096/1 "2023-09-15T21:41:17Z")
Hi There I’ve recently been experimenting with PrePoMax and I was trying out FEAnalyst’s tutorial 16 ([https://www.youtube.com/watch?v=Y0Fass1\_iuo](https://www.youtube.com/watch?v=Y0Fass1_iuo)) However I couldn’t get it to work in v1.4.1 in the end I changed back to v1.4 and started again and found the tutorial worked fine there. I then took my good 1.4 model and opened it in 1.4.1 to see if it would work, unfortunately it gives the this error: \*ERROR reading \*CLOAD: node 18305 is not defined \*ERROR reading \*CLOAD: node 18307 is not defined \*ERROR in calinput: at least one fatal error message while reading the input deck: CalculiX stops. Job failed - no results exist. To investigate further I performed a diff on the .inp file generated by 1.4 and the .inp file generated by 1.4.1 and you can see that the nodes have corrupt data in them. ![image](https://global.discourse-cdn.com/free1/uploads/prepomax/original/2X/c/c7d4240c5799fc6427e477352e97f53cb9cc2a66.png) I haven’t done much more digging but this seems to be related only to rigid body constraints. ---
**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\ **Post date:** [September 16, 2023, 7:13am UTC](https://prepomax.discourse.group/t/corrupted-inp-files-in-v1-4-1/1096/2 "2023-09-16T07:13:22Z")
Thanks for the bug report. I have fixed it and updated the developer 1.4.1 version. Please give it a try and confirm it is working now. ---
**Author:** ![Flare](https://avatars.discourse-cdn.com/v4/letter/f/c0e974/32.png) [@Flare](https://prepomax.discourse.group/u/Flare)\ **Post date:** [September 16, 2023, 9:10am UTC](https://prepomax.discourse.group/t/corrupted-inp-files-in-v1-4-1/1096/3 "2023-09-16T09:10:38Z")
Hi Matej Thanks for the quick update! I can confirm this bug is corrected in the new version. ---
**Author:** ![Matej](https://avatars.discourse-cdn.com/v4/letter/m/a698b9/32.png) [@Matej](https://prepomax.discourse.group/u/Matej)\ **Post date:** [September 19, 2023, 9:19am UTC](https://prepomax.discourse.group/t/corrupted-inp-files-in-v1-4-1/1096/4 "2023-09-19T09:19:11Z")