Working with a customer today and they have qualified a bunch of changes today on this 1756-L73 v20.01. It crashes with a "fatal application error" message. The file itself opens fine, but if you do a VERIFY or try to save it as an L5K (to maybe import it as a new file), it crashes. We tried downloading to the controller with this program and it crashes. Since the program opens, I am hoping to find a way to salvage this program (copying rungs to a new program will not suffice). If we can't salvage the program, they will have to revert to the last good copy, re-add the changes, and re-qualify the system.
Hoping for a resolution!