My character throw his gun when I roll on the ground

[skillastat 1]

Randomly when I press Q or E to roll on the ground, my character throw his gun.

It happened too when I just leaned right or left.

It's very annoying, especially when I can't find it back. Lost my gun like 4 times because of that.

The key to throw an item is G, so why when I press Q or E my character throw his gun ?

[shinjuru 114]

There are odd bugs with the key bindings.   Personally, when I would have my axe out and upon killing a zombie, my axe gets placed away and my characters pulls out my binoculars...   My axe is my number 1 key binding, while my binoculars are number 8.   I've also witnessed live Twitch streaming of a player who sometimes tosses his rifles after shooting.