Anybody else having problems editing their lists? I no longer can change my list orders.

I've been creating a long list of ranking movies, and now I can't change the order of the films I add to the list. Anything added only goes to the bottom of the list and cannot be moved to a different location in the list. I've tried edits on multiple devices, so I know it isn't the computer I am using. Is anybody else having this issue? Anybody have suggestions on how to fix it?