Sequoia upgrade causes external mouse issues on external monitors?

I do have the same issue with my Logitech M70 Triathlon since upgrading to Sequoia.

Dragging around a window fast on any screen causes the mouse to "loose grip" or it may not "lock" on the window at all. The M720 can use bluetooth or the logitech unified dongle. Tried both connection methods, same issue.

Then I connected my HP Travel mouse from work with my M2 MacBook Pro - issue gone.

It may be driver issue for some pointing devices in Sequoia but obviously not all.

Until the issue is resolved, the Logitech M720 is not usable with my Mac.

The issue came back again, upgraded to 15.2 last night, so far it’s resolved the issue

Turning off pointer acceleration fixed the issue for me.

I stand corrected. Two of my mice have a button that has reached "end of life" obviously. The M720 and now the same happened to my HP Travel mouse. Found an old Speed Link mouse and with the dongle plugged in to one of the monitors everything works fine. So the defective mouses tend to release the button for maybe milliseconds if they are not constantly pressed with hard force.

just started running into this, on my company laptop i was forced to update to sequoia 15.3.2 this morning, and the issues started immediately. But i think it may be a displaylink issue, even though it seems like it could be bluetooth...

First, I have an apple magic mouse 2, which has been perfect for years, and now it's all kinds of jacked up on external monitors. if i have my laptop open, and the cursor is on it, it runs just fine, BUT if i move to one of my external monitors all of the sudden there's like a weird lag, and also the cursor drifts in various directions, often upward. so if i just shake the mouse back and forth, it will go left and right but also upward... if i move my cursor around and try to stop on something, it seems to stop then jump up, it's annoyingly noticeable, and wherever i try to move the cursor, it dances around it.

I grabbed an old USB Dell mouse, and plugged it in and noticed right away that it didn't do this, and it's actually moving faster than the magic mouse. there doesn't seem to be the random drift.

I've restarted both my computer, my mouse, the bluetooth and even turned off the acceleration but nothing fixed it.

HOWEVER, as i type this, on my external monitor... i am noticing a delay in typing... so it's not just the mouse. i did upgrade my displaylink to the latest version which is 1.12, that didn't seem to fix it. my keyboard is an older wired mac keyboard, so it's plugged in. I just moved this window over to my laptop screen and there's no delay in my typing... SO, i'm thinking there's something messed up with displaylink...

funny enough, i have several co-workers who recently pitched a fit that their docks were "broken" and dying because of a random lag, and now i'm starting to wonder if they had upgraded and thats why...

Hope this gets resolved soon.

I had the same issue which I reported here (no DisplayLink, but jerky Apple Magic Mouse) - but it got removed, because I mentioned pre-release software (which doesn't change anything, because the problem persisted in Sequoia 15.1). I wasn't even informed about the removal...

Meanwhile I disconnected the new Apple Magic Mouse 2 and connected an old Magic Mouse 1 and everything works just fine... (So the solution is not removing some posts, but fixing the issue or help the community).

I am having the same issue with my Mac Studio. Mostly when using Left click and fine movements are a disaster across the board using all Apps. Logic Pro 11 piano roll is ridiculous. If I use my slim blade ball no problems. Only my Apple Magic Mouse. I have tried all of the mentioned fixes. I am so frustrated. I have updated Sequoia to 15.2 and Logic Pro 11.1.1. Still an absolute mess...........Apple you need to fix this ASAP. We pay good money for your products for the reliability....not so much with this update!!!!

Update: my issue ended up being a dusty optical lens on the mouse. I was chasing bluetooth issues because of the audio drops, so I jumped to a conclusion it was bluetooth. However, when cleaning the optical lens, both issue cleared up.

I just change the battery and problem solved

logitech mouse

My issue might been caused by an additional bluetooth mouse that was still connected from my bag, not sure, but no issues since I identified it

Did you see the post about using DisplayLink? Does it not apply to you?

If your dock uses DisplayLink, make sure that it's up to date.

Using MacBook Pro (M3 Max) Sequoia 15.0.1 - Logitech external mouse (MX Anywhere 2S). Mouse button seems stuck - problem persisted after switching off the mouse (using the trackpad), but closing the App (Miro) and switching on the mouse and resuming work on Miro resumed normal operations.