I really don't know what I was doing exactly, but i ended up with all my channels on solo or soft solo (dimmer yellow) and couldn't use the Opt+RudeSolo click to turn them off. Rude Solo was lit but even with the option key, it wouldn't turn off. One of the channels I could get to mute and then I got a half-filled solo light on the other channels, but I couldn't clear the channels. Tried shift- clicking to pick them all and then muting/unmuting soloing/unsoloing, etc. I even reset BFD3 but I had saved the preset and the reloaded preset had the same bad settings
Fortunately for me, another bug - I have two copies of all the BFD3 presets in my presets pile - saved my A**. I "removed" the bad one and the other one worked well.
Wish I could tell you exactly what I did (but I really don't feel like trying it again!!)