Tuplets are imported wrong from 2.X file so that notes are lost
Tested with self built MuseScore on OS: Windows 10 (10.0), Arch.: x86_64, MuseScore version (32-bit): 3.0.0, revision: 44304ca
I set Major because the score is corrupted in particular place and initial notes cannot be recreated.
1. Open score
2. Go to measures 13 and 14
Result: compare the measures content in 2.3.2 and 3.0. Some notes have been lost.