Hi Don, this is kind of a general problem on Mac that there isn't an ironclad way to differentiate a trackpad scroll from a mouse wheel scroll, they both send the same type of scroll message. It makes it difficult to make them do different things.


MoI v5 tries to differentiate them by looking a property on the event called "hasPreciseScrollingDeltas" and if that is present it decides that it's a trackpad or magic mouse (trackpad-like mouse thing) and not a mouse scroll wheel.

When your mouse switches to panning behavior I guess it must be reporting hasPreciseScrollingDeltas at that time.


Do you see any difference in behavior if you set UseTrackpadScrollAsMouseWheel=y in moi.ini ? Go to Options > General > "Edit .ini file" button to edit moi.ini . If you set that then the mouse should stay consistent in behavior I think.


I have heard from someone before that they had some behavior like this that was tied to a particular mouse. Do you have any other brand mouse around that you could try with instead of that one?


You may not be able to use both the trackpad and the mouse at the same time with that particular mouse.

- Michael

Hi Don, also if there are any settings for your mouse that says something like "scroll line by line" instead of "smooth pixel scrolling", changing that might help.

- Michael

Also, did you install a driver for this mouse? If so you might try removing that so a generic mouse driver would get used instead.

- Michael

Hi Michael, apologies for the late reply. I've been busy setting up a new workspace, so I couldn't try your advice for a while.

The UseTrackpadScrollAsMouseWheel method works perfectly! Now the mouse wheel will never change its function randomly.

My Logitech mouse operates separately through an additional driver, but for now, it seems to be working perfectly fine, so I think there's no need to consider deleting it. If scroll function issues arise again in the future, I'll try deleting it and check whether it is set to smooth pixel scrolling or not.

Thanks!

- Don