Mouse hover/focus issues after 26.2 upgrade

lzap80 wrote:

After upgrade from Tahoe 26.1.x to Tahoe 26.2 on my MacBook Air 15 (M3), I am experiencing issues with mouse hovering or focus in the whole system including main Apple menu (items are not being selected as I hover over them), browsers (focus issues), Slack (same) or notifications (hovering does not bring the close icon). I never had such a problem before.

I restarted my laptop and I have found out that this starts happening only after I connect my external monitor over USB-C hub.

Both my internal screen and my 4K monitor are at 60Hz and HDR is off, not sure if that is relevant. Any workarounds? Thanks.

Try a different connection

If possible, test one of these:

Monitor directly via USB-C (no hub)

HDMI instead of DisplayPort (or vice versa)

Different USB-C port on the Mac

If the issue disappears >> the hub firmware is triggering the bug.

Many hubs incorrectly report display geometry or scaling, which breaks hover detection system-wide.

lzap80 wrote:

It was a suck button on my Logitech MX Master 3 for Mac. There is a hidden thumb button which is some action I dunno I never used it. And it is faulty, it is pressed all the time no matter what I do which is spamming the OS with this event.

Ah, the joys of using Third Party Devices >> keyboard and mouse and possible " No Name USB Hubs "

Certain misconceptions that persist regarding the relationship between Apple Computer and third-party devices, and accessories.

These misconceptions often arise when third-party products fail to function or meet user expectations.

Apple is responsible for addressing issues with its own operating systems, and accessories.

However, Apple cannot rectify user choices of third-party products  installed and used on their computers.

This responsibility lies solely with the third party to evaluate the performance of their products when used on an Apple Computer running the intended version of macOS.

How to contact an app developer

edit: I didn’t see your two responses before I posted this. In my experience, Logitech software has always lagged way behind macOS updates.

Are you also using an external mouse that has driver software installed?

What type of port are you using on the monitor?

If it is a USB-C then it is also probably passing data over that. Not just video and macOS pretty much doesn’t like that. But, has already noted, I suspect the hub.

lzap80 wrote:

Thanks for help, I have not changed my USB-C hub, it started immediately after 26.1–>26.2 update. This hub has not upgradable hardware, it just works fine, it is a no-name one.

As you wish regarding " not changed my USB-C hub " and " it is a no-name one. "

From what I have seen since macOS 12 Monterey and newer versions of macOS

USB HUBs in general have been majors issues that some refuse to acknowledge as a possible Source of Issues

I have exact same issue, after system update some applications have this issue reoccuring (app restart usually helps for some time).

In my case - absolutely no logitech hardware and software. I do have dock from Kensington (SD5200T). Absolutely infuriating...

jakoss wrote:

I have exact same issue, after system update some applications have this issue reoccuring (app restart usually helps for some time).

In my case - absolutely no logitech hardware and software. I do have dock from Kensington (SD5200T). Absolutely infuriating...

What happens if you remove the dock?

lzap80 wrote:

After upgrade from Tahoe 26.1.x to Tahoe 26.2 on my MacBook Air 15 (M3), I am experiencing issues with mouse hovering or focus in the whole system including main Apple menu (items are not being selected as I hover over them), browsers (focus issues), Slack (same) or notifications (hovering does not bring the close icon).

You are describing the way it normally works. Perhaps some 3rd party system modification stopped working somehow.

Has anyone found a fix for this? I have the same issue across two devices - a MacBook Pro M3 Max and a MacBook Pro M1 Max.

I was hoping the update to 26.3 would fix it, but the issue is still there.

A couple of weeks ago I even re-installed the M1 Max from scratch to see if that makes a difference, but the issue returned. I have an MX Master 3S, but have not used it with the M1 Max since resetting and also don't have any Logitech software installed. The only shared hardware I have across both devices is an LG monitor and a CalDigit TS3+, which further connects to a Scarlett 2i2 Gen 4. And a Magic Keyboard + Magic Trackpad.

The problem occurs when away from the desk with absolutely nothing connected to the MacBooks as well though.

Same issue, seems like it's not dock-related for me