Thanks for the answers, i low on 1130/2030 (drop from 118.5 to 117.5), for now everything is OK. but, my quesition is "why this invalid shares not count as reject ??). I remmember when i mining ltc before 4 years (my old account was stolen , was hero member, kosaet) , i always was have 1.5 to 2% rejects ?

If this continue, i will swap cards, to understand where is the problem (i just wanna mine rigs to be perfect )