Game crashes when hovering skill gem over weapon skill slot

Hi.
I have a scepter with the built-in skill "Malice" at level 12. When I take this weapon out of the equipment slot and put it back, the Gem UI window shows an empty slot instead of this skill. If I transfer any skill to this slot at this time, especially "Flickering Strike" or "Whirlwind Charge", the game freezes and then closes.
Thanks.