Try clicking on the "Show Errors" button.

Show Errors button on the toolbar

Also, check all the fields in the details view of the said boundary condition are correctly filled.


It says invalid loads for the error message, fixed this on my own machine, but not for the computers/clusters available at university. The problem only arises when the GUI is used there. On my local machine, I put accidently ''modal analysis'' instead of ''full''. but this seems not to be the problem this time.