I might have noticed this before, but not realized what it was.
I needed to change the name of handler in a longish script with lots of handlers and most of them folded.
Since this handler was called several times I used Find/Change all.
It worked, but the renamed handler had been folded, and now won’t unfold. At first it had the handler name and the little eclipse (…) and then the handler’s name again.
This is repeatable.
–> Script Debugger 7.0.8 (7A80)
–> Mac OS 10.11.6
(I know there is a newer version available but I reverted to this one for that unresolved bug I experienced)