Adding 'Text ' in the header box

Adding or editing 'Text' in the header box system crashes trying to enter a 2nd line.
Adding 1st line appears OK but once 'Return' is pressed for next line system goes into 'Not Responding' and doesn't come back.

Using manuscripts from MuseScore 3 where two lines in 'Text' was entered, trying to edit entry in MuseScore 4 sends system into 'not responding' mode.

Tried to create & send diagnostic log file but it was an 18Meg zip.