8.5.1 turning on and off insert plugins takes multiple click

Anyone notice on 8.5.1 trying to enable or bypass insert plugins takes either extra clicks - a random amount so far sometimes taking me 4-5 clicks to make a plugin turn on

https://www.steinberg.net/forums/viewtopic.php?f=230&t=92768

Wow, that thread got locked with no solution. What the hell.

It’s now Feb 2017 and this problem is getting WORSE for me on Mac OS 10.11, latest 8.5.20.

Does anyone know if this has been fixed in Cubase 9?