I have been developing a script and its associated libraries for many years. I am starting work on a new version. When I copy the scpt to give it a new name, it works fine. However, if I add a comment or change one character of the code, it “breaks”. It suddenly throws an error that parameters for a handler do not match. I have checked this several times. Exact copy = OK. Change to copy = breaks.
Can someone think of any reason why this is happening now?