Strange message / CHAIN

[FEAnalyst]

Did you delete something from the model (e.g. some part) ? Are there any items in the tree shown as invalid (red) ?

Invalid items not shown

When more than 1 item is meshed, and the user removes one of the meshed items this warning appears: [image] Initially I thought maybe I left some selection items from the removed mesh like maybe a material section or an applied load or constraint but that doesn’t seem to be the case. I assume maybe the program would create a node set to highlight something that needs to be removed? but there is no new set created, just the warning about it.