For me, it has happened here and there for a while but it wasn't too bad, however, ever since 4.0 it has gotten much worse and is my biggest complaint with the game at the moment. Can't even begin to describe how frustrating it is to queue up your prompt mystery and watch 5-6 standard attacks go through before it fires or even worse - when the mystery doesn't trigger until next round and completely ruins your chakra usage.

- It doesn't seem to be tied to specific ninjas or lineups

- Occurs mainly during the time for evening events (sage, matsuri, bonds) as there are many people playing simultaneously at that time