In Cakewalk Produci Center I see Core Plugin up to date but if I open a project and install a Sonitus plugin in a track I see just the old plugin.
I also open prefereces/Vst plugin setting/Vst 3 migration replace if possible on project load.
But no result.
I think you did not read well my post.
Supposing that In a track pane I inserted a plug-in.
During teaking the project sometime I delete one or more bars.
Sometime it happens that I have the bar/bars s deleted and the plug-in in the track pane deleted too.
Supposing I have a track with some plugin inserted. Sometime if I delete one or more bars the plugin is deleted too.
It's really embarassing and bizarred.