This has been abit longer time issue i noticed, ever since 3.0 i noticed that its possible to commit interruptions no matter what, doesnt matter if the target is immune to them or immune to paralysis

Hidan with his mystery skill can be interrupted despite the tooltip saying he should be immune to that and i remember some time ago that it was true and i couldnt stop him with simple interrupt (Without paralysis) like 4.th rasengan mystery.

Was something changed and descriptions weren't changed to accommodate for it ?