We are experiencing some errors in the Femap model, the version used is 11.1.1.The issue is that some of the load sets in FEMAP listed loads twice for the same node or element. For example: Load Set 110 - Wind Load (200 yrs) y-dir Load Definition 4 - Swivel StackNodal Forces (on Node) ID Color Layer Def CS X Y Z Phase 83382 10 1 0 0. 117753. 0. 0. 83382 10 1 0 0. 117753. 0. 0.
Is it possible to have a duplicate load in one load definition on shared nodal? or is it some kind of bugs?
Try to isolate the problem using a reduced model size and post the FEMAP model here, we can take a look to it.
I will check also if when you export your FEMAP model to NX NASTRAN solver the nastran input deck is created correctly: use command MODEL > ANALYSIS > PREVIEW INPUT.