Andrew, I will test after I fix my multibit mess.  BUT, I suspect the problem with GANG mode is going to be broken because that is the fix that went into the June 2020 release.

On Thu, Aug 5, 2021 at 11:13 AM Andrew Randrianasulu via Cin <cin@lists.cinelerra-gg.org> wrote:
My initial idea about modifying track.C was wrong, but even simpler mod (attached) makes selection by setting in/out points and attaching plugin from menu work...

in sense your plugin legth now can be set by setting i/o points not by just mouse selection or making few cuts with 'x' blade and then selecting block.. 

Phyllis, Andrea - can you give this patch a lot of testing? I mean with many tracks (armed/disarmed), many plugins, shared plugins, gang modes, etc...? 
--
Cin mailing list
Cin@lists.cinelerra-gg.org
https://lists.cinelerra-gg.org/mailman/listinfo/cin