Ahhh okay, so the problem is happening with a trace. When you run the trace, are you seeing an Engrave operation set up in the thumbnail column on the left?
I don’t know if it will help, but we’ve got a separate tutorial for using the Trace function. If you look at that you might see where it’s breaking down.
Or you might just try a different file. Sounds like something might be corrupted in that one and the interface is shutting it down.