I've been noticing some odd readouts on weapon damage numbers. For example, if I set in options to show base damage, without factoring player skills etc., a simple unmodded triple barrel shotgun shows 15 x 8 damage. When options are set to include player effects, the damage reading sometimes reads 12 x 8, and a moment later, say after equipping the weapon, it reverts to 15 x 8. There doesn't appear to be any skills / traits / perks / items etc. that account for the fluctuation. This is one example, but it happens to several of the base weapons I'm carrying.