Stats on the items->stats on the character sheet

What this problem is related to? (e.g. Website / Launcher / Game / etc. ): Game.

NPC Name, Quest Name, Skill/Item Name (if relevant):

Describe the problem:
Obviously, character sheet somehow incorrectly displays the stats, including those that was added from the equipment. But the thing is every time i do the same actions from the video below i can end up with different results. Fully unequipped character has different stats at the start and at the end of the video.

List the steps to reproduce the problem (if relevant):

  1. Unequip
  2. Equip
  3. Unequip

Screenshots/Videos (if available):

Here is a full bug description. More detailed. Sorry for duplicating, wasnt sure i can reproduce the bug. /attributes values compare to character sheet values