I'm running version 10.5.1 and have been dealing this issue consistently, though in my case it resets any instance of the Soundtoys Echo Boy plugin (specifically, it seems to trigger the "compare button", as mentioned above). Strange that this seems to be the only plugin being affected. Watching my "Undo History", I've noticed that every instance of Echoboy throughout the a session resets when I undo any change made to a channel strip setting (with the exception of pan, fader, and send levels).
I re-downloaded and installed Echoboy for good measure, though it hasn't been updated recently, and the issue still persists with that plugin in particular. Considering how many instances of Echoboy I use in my template, this bug is more than a bit of a headache.
I'm curious if anyone is still experiencing this in version 10.5.1, and if so, have you noticed the bug only affecting certain plugins?
Cheers and thanks in advance for any reply.