If you lock the dielectric thickness of a 2 layers board, the stack manager has not dielectric layer to adjust. So it cannot adjust the stackup thickness. However the crash should not happens. Can you share your board?
If you lock the dielectric thickness of a 2 layers board, the stack manager has not dielectric layer to adjust.
So it cannot adjust the stackup thickness.
However the crash should not happens.
Can you share your board?