+1I encountered a small problem when using the FX8 tonight. The X/Y option stopped working. The X/Y option was enabled (I had to look to find it and verify). Rebooting the unit fixed the problem. I took a photo of the blocks I was using and saved the preset. It hasn't happened again.
Same thing happened to me last night. I had just installed FW3beta, and was trying to toggle my reverb xy via press & hold (which was engaged in settings). I can't remember what else was going on in terms of what may have caused this, but when I tried it again later after rebooting it was working properly again. Possible bug?
This is an awesome update FWIW - well done gents.