So I’ve found some controls related bugs:
Bug 1: The runes doesn’t work when selecting “Combined + Rune Selection” in the options.
Edit: This is not a bug, my bad.
Bug 2: “Parry” and/or “Shoulder Barge” registers as “Offhand use” when binding them to mouse 4 and mouse 5.
Bug 3: The F1-F12 buttons cannot be used as binds.
Bug 4: The player can’t save binds if not every single action is bound to a key.
Interesting, so when you use shoulder barge it always activates your off-hand, no exceptions?
Can you fiddle around with the keybind for offhand use, see if that helps resolve it? What happens if you set it back to its default, V?
I will also see if I can reproduce.
Silas
edit: I couldnt reproduce sadly. also a friendly tip if you didn’t know, you can set your parry to the same offhand keybinding as well 
Still eager to hear from you!
Thank you for the tip. The shoulder barge is still bugged though. I added two more bugs.
Please add those to the existing reports, or make new topics about undiscovered problems! I cannot keep order if they are all in one thread.
Thanks so much for your effort and diligence already
.
Silas
problem with combining offhand with parry is now parry is executed on release, same as combine run and dodge. Considering both actions are defensive responses they serve better with the absolute smallest margin of response one can achieve… the moment the button is pushed. I would make it the moment the button is touched if I could lol