Autonomous balls getting stuck

[Ornocarbo]

Our team recently competed at the 10,000 lakes regional in minnesota and we performed very well. However at the last semi-final rounds during the autonomous period our dumper system which dumps two balls into the lower basket got the balls stuck in the hoop. The system worked fine all the other rounds up until we needed it most. We bagged it up to be ready for state competition invites already so we can only change the program for it. Would increasing the dump speed change anything? or is it just plain bad luck?