Пока закрою. Если будет дополнительная информация, оставьте комментарий.

I tried reproducing the issue on another PC with Windows 7, but it doesn't crash for me. And unfortunately, the report is not very helpful, as the crash happens in the code of explorer, and not of the tweaker.

Please provide as much details as possible for reproducing the issue, including:

• The tweaker options, including advanced options.
• The system settings of the taskbar (taskbar right click -> settings).
• If possible, make a video of the issue.

Also, try turning things off and see whether it still crashes. For example, I see from the screenshot that you have lots of apps running - try it with only a single app, or two apps, etc., and see whether it crashes. Also, try to run the tweaker with all of the options off and see whether it crashes.

The fact that it crashed for you on two different PCs, while no other user reported about this issue, probably means that there's something in your configuration that causes it.

Also, you mentioned that the issue didn't happen with older versions of the tweaker. If you could track the version which introduced the issue, it can be helpful, too. Older versions can be found here:

https://www.dropbox.com/sh/mcbychsh0xc1dvu/8-Lj2sg3NP

I could not reproduce the problem on my laptop, Windows 10. I'll try later on a different computer.

Meanwhile, can you attach a crash report? You can use the following guide:
How do I find event logs when a program crashes?

That's because VMware uses thumbnail previews. There's nothing to decombine, as there's actually only one taskbar item.

You can turn the feature off, see this answer.

I'm not familiar with QQ, perhaps it offers an option, too.

tray_icons_padding is supported in Windows 10 since 7+ Taskbar Tweaker v5.2, but it's implemented differently.

More details here.

У меня не получилось воспроизвести проблему.

На моем компьютере, 7+ Taskbar Tweaker качает новую версию отсюда, и корректно устанавливает.

Проверьте эту ссылку, какая версия качается с нее на Вашем компьютере?

It's not a bug of the tweaker, therefore I've changed it from a Bug to an Idea.

7+ Taskbar Tweaker v5.2 introduces the virtual_desktop_order_fix advanced option. More information can be found here.

I'm not familiar with the issue, but I found the following thread for you:

http://www.tenforums.com/browsers-email/20589-cant-unpin-microsoft-edge-taskbar.html

Perhaps the issue was fixed in v5.2. If not, please leave a comment or create a new topic.