Don’t know what 'a wrong here. Sending note off to all instruments triggers notes in Odin and it’s not possbile to stop it. In order to reproduce the track has to be started (that Odin is playing) and stopped. After that sending note off to all VSTs triggers notes.
This happens on Ubuntustudio 20.04 but is likely platform independent.
Used Odin version 2.2.4
test_Odin.xrns (19.0 KB)