I am trying to add a 4" XS weldolet, 2" long, weight 6.4 pounds continuing element 140-150. CAESAR II has crashed six times in a row with this operation.
I've attached the input file - nothing special is going on.
Made this work by just putting in the element as straight pipe, moving on to the next element in the model and entering that, then returning and changing this element to a rigid. Clumsy but at least it's done.