Hi,
I just found something that might be a bug in UASM32 v2.49
Basically, if you reference an undeclared identifier and assemble, sometimes UASM32 doesn't show undeclared identifier error. Instead, it will just hang forever.
I attached project where the incident occurs. Hopefully that will be useful for the coder.
Thanks for this, I can re-produce the issue and will work on a fix.