Am I stuck in a drop loop?

alxstgt

Since the update I ran a lot of Castle Never. But in 99% of the cases, both end reward chests granted me rising or sudden lifesteal rings +1, +2 or +3. There were maybe 2 cases yesterday and 1 today at the beginning when one of the chests droped me sth. else. I experienced bad luck before but this seems buggy. Could sb. give me an advice what to do?