OnlyKey Signing Me Off My PC

Previously I set OK to sign into my bank on the 3a slot. It was working great for weeks. Now when I hit that button to sign into that bank, not only does it lock me out of OK but it also logs me off of my PC. (and I am not depressing that button for 5 secs; just tapping it). Frustrating! Any ideas?

It sounds like you set this button as your lock button in preferences: