Blueprint Corruption on OnComponentBeginOverlap

I’ve recreated blueprint, just by creating a new blueprint based on Actor. Having old and new blueprint side by side and rewire new one just like old one (well almost, found some improvements I could do).

Rebased actors that inherited from Pickup_Master to new blueprint. So far so good! Compiled everything without warnings or errors, pressed played and BOOM a crash. Reopened engine and now newly created blueprint is acting just like old one.

I had a similar problem on another blueprint (Weapon_Master), but i solved it by doing a bind to event like this.

Tried to do it on Pickup_Master, but no event gets triggered when doing so.