When on editor:

• picking spellscroll to hand adding it only to spellbook (good)

When on builded game:

• picking spellscroll to hand adding it not only to spellbook but also to inventory what causes bugs (not good)

Both:
Opening inventory while holding hand near item, makes it be still in hand while closing inventory. (not good)
Opening inventory while holding hand far from item, makes it disapear after closing inventory. (good)
This bug may also be a reason of the one listed above.

On lower fps like 1-20 its possible to look through wall. Sometimes its also possible to change chapter/level without unlocking it because player is overlapped in collider before movement script will check that he collided with obstacle and return him to last tile.