This sounds related to the limitation I pointed out here:

https://tweaker.userecho.com/topics/184-cycle-between-taskbar-buttons-stops-half-way-in-windows-8x

Is it the same scenario? Are the windows that you're trying to scroll owned by a process that's running as administrator?

Please see my other comment in this thread and answer all points for me to be able to investigate the problem. Thanks.

Please try the newly released beta version, 5.11.1.2, it might fix the issue. Please let me know whether it works.

That might be because of update KB5003214, released on May 25. I'll check it as soon as possible.

7+ Taskbar Tweaker shouldn't affect anything that's related to this functionality. I believe that something else causes the issue. If you're convinced that the problem is caused by 7+ Taskbar Tweaker, and have a good reason to assume so, let me know and I'll reopen the topic.

Fixed in version 5.11.1.

Sounds like you have problems caused by a false positive detection. You can try getting one of the previous versions here, or wait a couple of days for the false positive detections to be removed. Contacting your antivirus company will help speed it up.

In this case, I'll close the issue. If you'd like to try out a debug build, let me know.

Interesting. The fact that you can see the update means that there's no problem with internet access, but for some reason downloading the new version fails. One guess is that perhaps a security software prevents access to the new version, but you're saying that you can download it manually and it works.

I can build a debug version of the tweaker for you, which will print verbose information, hopefully providing some clues about what's the problem.