Riven_Azir Bug

Hello, i want to tell u about a riven azir bug i experienced in the last weeks. i played 4 times with riven against a azir and in 3 of 4 times it happens. when azir uses his R and i try to jump with my 3rd Q over azirs wall by mistake , which is normaly not possible, i stick on the top of his wall and cant move until the wall disapeares. this is realy anoying in teamfights and was evrytime my dead. MfG Luk134