Scrollbar appears but does not move

[OracleToes]

VIM - Vi IMproved 8.2 (2019 Dec 12, compiled Feb 09 2021 23:51:55)
The scrollbar shows up, but when I scroll down at all, the bar stays in place and the rest below is just all grey. basically the tags just don't update at all.

[gsuuon]

If you uncomment these it should work. I think this value should probably be initialized to 0 so the bindings get set up