I beat Charlotte and then got Waterfall from Blake, but whenever I try to interact with the waterfall while surfing, it doesn't prompt me to ride it. If I go into my party menu and try to use waterfall, it tells me a new badge is required. It might be important to note I play with the easy HMs password enabled. Anyone have some kind of fix for this?
I've tried closing and reopening my game multiple times.
I tried teaching Waterfall to my Sharpedo.