Kalista binding bug (GAMEPLAY)

just played a game with kalista and when i would try to bind with my support it wouldn't happen and would just go on a ten second cd. Then we were were like halfway bound. I could ult my support but the support could not control anything while i ulted him. Not sure if we were getting damage bonus from sentinel or not. We didn't have the bind animation between us when were near each other either. no idea on how to replicate this unfortunately. Just probably not gonna play kalista until i hear about it.

my support was shen btw