Thought I would bump this thread as it's relevant (ish) to the issue I've experienced.
My scroll wheel started to randomly jump up/down pages if I scrolled anything but dead slow. Found this post on Linus Tech Tips that also mentioned adding some WD40 to the wheel inside the mouse:
https://linustechtips.com/main/topi...oll-wheel-issue/?tab=comments#comment-9074359
Video of taking apart/putting the mouse back together:
https://youtu.be/MeD-dA3TE0w
Seems to have done the trick!