@Iu.Gob this is "only" one Display-issue(since 5.2xx)
within/from Piano Roll/Note properties
for Notes which use
0x9n NN 0 (Note ON|Note No|Vel 0) instead of 0x8n NN VR(Note Off|Note No|Release Velocity) for Note OFF..
Properties display- List Edit vs Piano Roll same Note/Item
I vote for typing in -1 or OFF = use/change to 09x NN 0
typing in >=0 /edits within RV Lane = use 08x NN RV