Selected Barline - Shift B -> Crash. (sigh)
Did Help > Create Diagnostic Report
Then tried to append “Dorico” hera but it’s “too large” (3.04 MB). So now?

You can email the file to me. My email address is d dot spreadbury at steinberg dot de, as I’m sure you already know, since you have emailed me before.

If the problem is reproducible, by the way, please also include the project and the steps needed to reproduce it.