Well... no dice. I went completely back to FW10 on the unit and the editor - and everything was back to normal. Then, I re-downloaded the FW11 beta file, and installed it. Even before updating the dyna cab file or editor, the strange switching glitch was happening again. Maybe it's my layouts file getting weird? ill back that up again too and try again.
Update: I tried reinstalling my all layouts file, after updating, and the switching glitch persists. Selecting switches that are programmed as effects was selecting scene 8 at random. Sometimes, even between selections it would jump to scene 8 for a split second. Each time I revert back from FW11 beta to FW10, I lose (blanked out) the scribble strips and have to reload the system_global_fc file to get them back. Very strange...
I guess I'll stay on 10 until a newer 11 beta file is released, or until its a released officially.