Over the last couple of weeks, I have been having user object issues.
For example today, I'm working on a new song and tried to enter the User Object "VerseNumber.ms" I get a little triangle next to the first note, but no verse numbers. I'm including a clip of what shows on the edit page, and the alert log.
As you can see, the log shows more errors than just the verse numbers. It is also happening with Que heads.
I am not sure what "Execution limit exceeded" means.
How did you try to enter the object (key strokes please)? Nothing in your screen shot looks correct for a user object.