[BUG] Swapping weapons causes weapon to not consume ammo

I've been playing RICOCHET Expedition and fending off the adolescent cave worms inside the tunnel cave. I was crouching by the drill using a Recurve Bow (with a lot of bow talents which may or may not be relevant) and I shot a Flint Arrow at the adolescent cave worm when it popped up. Seeing that didn't kill it, I quickly swapped to the Hunting Rifle and fired a shot. As a habit, I tapped R to reload immediately after the kill and noticed the shot didn't consume any ammo. I do not have that talent on this character (or any Firearms talents.) I was able to reproduce this a few times. It seems to be around the time you are about to load your next arrow, if you swap to the hunting rifle you can get a "free" shot. I didn't check to see if it consumed the wrong ammo instead or anything. Just that it does not consume rifle ammo. This is an online game but playing solo.