So I have just noticed this problem in the past few days and it is really annoying. Whenever I connect my mouse to my Mac, the mouse cursor just jumps a few inches to the left repeatedly, and whenever I try to move it back, I just keeps jumping. I have fully updated my Mac, replaced the batteries, restarted my computer, cleaned off the sensor, and turned my mouse off and on a few times. Despite all of these efforts, It still does not function correctly and keeps jumping to the right. If anyone has had this issue and has fixed it, how did you do so? If this is a new issue, any ideas on how to fix it?