Sad, funny or just the times we are living in, it seems like everyone have to spend more time looking over there shoulder than looking forward.
MastercamX3 added a disclaimer when opening a second instance that have resulted in some confusion among users.
Old:
New:
Disclaimer is all it is, nothing have changed and that is alright. If you have issues running 2 instances of MastercamX3 at the same time it is most likely your system that is the cause, I have had 3 instances open on my “Commodore 64” alike system at home without problems.