Changing instruments from a tablature crashes the program
OS: Windows 10 (10.0), Arch.: x86_64, MuseScore version (64-bit): 126.96.36.19988, revision: 148e43f
I know that this is not supported, and that the opposite use case is probably more tempting (ex: wanting to get a guitar tablature from a piano score, it's not uncommon to read it on the forums).
Nevertheless, I suppose that this one, e.g. from a tablature retrieved somewhere, for wanting to obtain a violin score, is not completely to be ruled out.
With 2.3.2, it failed, of course, with this display of red squares and question marks - image below (and by undoing, the situation returned to the way it was before).
With 3.4.2, the program doesn't like it at all and dies immediately. That should not happen.
1) Open this test file: TAB.mscz
(excerpt of Tablature template with a few notes):
2) Right-click TAB staff-> Staff properties -> Change instrument -> Let say, violin (or flute, or piano) -> Ok
Result: the programm shuts down
result with the 2.3.2