Saw this bug pop up in 12.7.1 and is still present in 12.8.
I have a bunch of my go-to plugins favorited in the inserts menu
(hold cmd and select a plugin to add them to favorites), and periodically a bug happens where I select a certain plugin (say Studer A800) and instead of the Studer popping up, Pro Tools opens the plugin above the one I selected (in this case would be SSL 4000 Buss Compressor). And this happens for any plugin I try to open. So in order to get the plugin I actually want, I have to select the one below it. Closing and reopening Pro Tools usually fixes the problem temporarily.
Anyone else seeing this?
EDIT: Here's my list of favorites attached so those with this issue can compare and maybe we can narrow it down to a possible specific plugin issue.