I am not sure how you could replicate it, but I seem to have fixed the issue. I do not know why it is fixed, but maybe you can see something I don’t.
Old:
New:
The old is a macro that existed in many of my blueprints, all of which were popping up with the error I showed you.
The new is in my macro library and uses local variable instead of a global variable. The switch from global to local variable “should” be the only practical difference between the 2 macros. Not sure how that could create the error in the original post.
Any ideas?