I don’t know if Blizzard is aware, as they addressed a different mouse cursor bug and not this one, but the cursor sticking bug still persists. The bug isn’t posted in “Known Technical Support Issues” so I figure I can bring it up again as it’s been happening for weeks. Prevalent in scenarios where the mouse is moved in rapid movements while also clicking, like when multidotting targets or doing Nazjatar rune puzzles.
Here’s a big report someone made a few weeks ago without any follow up: Mouse cursor “sticking”