A sol E bug

Happened three times to me in my most recent A-sol game. After maxing my E at level 18 i could activate it but had to travel the full distance or almost full distance. I could not cancel the ability early to stop flying. (needless to say i got myself into a few awkward positions flying the full distance of a maxed e) I had no problem with it until i maxed the ability except one time around level 9 instead of flying parallel to my direction i was flying at a 5-10 degree difference from the direction i was facing. I'm not sure if the bugs are linked.