For the SB folk reading these posts, with no signature info from you, they can’t discern your platform (Win or Mac); or draw a conclusion whether this may be simply an old 32bit vs 64bit edition problem with the plugin.
If its important to you; suggestion - change Original Post title to:- Confirmed - Quadrafuzz II UI bug; C9 (edit:- because I’m assuming that’s all it really is.!)
And detail in the post that this is broken behaviour. For example:-
C8.x.x = expected behaviour
C9.x.x = broken
It may then get some attention/action a little more readily than otherwise - leave them having to guess too much, and they move on…