If you've tried all the above steps and the issue persists, it's possible that there's an OS-related issue:
Is your Magic Mouse, Logitech, or generic USB mouse scrolling erratically or not at all on your Mac? Don't panic. Here are 7 quick fixes to get you back on track. mac mouse not scrolling
You flick your mouse wheel. You swipe your Magic Mouse. The cursor moves fine, but the page stays frozen in place. Sound familiar? If you've tried all the above steps and
If the basic steps don't resolve the issue, try these advanced troubleshooting steps: try these advanced troubleshooting steps: Sometimes
Sometimes, the mouse’s internal firmware just needs a quick nap.
If you've tried all the above steps and the issue persists, it's possible that there's a hardware-related problem: