[Solved] Effects rack keep getting bypassed.

Yet another, "what the hell am I doing wrong?" post. Every so often all my effects racks get disabled. There doesn't seem to be any rhyme or reason to it. I don't have any keys assigned to it. I do have the mix module open in my tool bar but don't how I could be hitting it accidentally without hitting all the other buttons. Same with the context menu in the racks themselves. Any ideas? Am I subconsciously sabotaging myself? Sunspots? Gremlins? 
 
 
edit: added [Solved] to the subject - sc

Ah ha! That is the problem, but why doesn't it show up as a connected to E when I search for Bypass All Audio Effects? It also wont let me unbind it, though I can bind the key to something else.
 
Thanks, at least I know I'm not going crazy.

E stands for “Evil shortcut”

It’s situated right next to the frequently used W/rewind shortcut, and I lost count of how many times I accidentally pressed E instead. Followed by frantic adjustments to various FX settings to try and recover my mix, to no avail. And then that moment of “doh”.

I disabled the E shortcut. I actually enjoyed doing so, as if I were exacting some sort of revenge.

E stands for “Evil shortcut“.