also when the UI shows your ammo as yellow is when it happens, its something to do with having the bonus bullets left over from the first upgrade, makes 0 sense to not be able to reload and just be 12/12 instead of adding onto the bonus. So if you have this bug with 4 shots left, you're forced to shoot 4 times before reload. Unplayable for a hero that needs to proc to do damage(less damage than 1 second near callico btw)