Hi pelaird and thanks for posting.
There seems to be an issue with 2.5.5.4 that when an app is open, hovering over the app in the taskbar manifests an Explorer icon with a blank thumbnail. I have rolled back to 2.5.3.1 which alleviates this issue and the Group texture issue I reported here
https://forums.stardock.com/538357/page/1/#3979058FYI: 2.5.5.3 didn't have this issue, so it was introduced with 2.5.5.4.
Windows 22631.5909; Start11 2.5.5.4
Enhance taskbar on; always combine; centered Start button
From the current release of 2.5.5.4, with Win11 Version 24H2 (OS Build 26100.6584), I'm also not seeing the issue. I've set the settings you specified, then hovered over open applications on the taskbar with the mouse. This is producing the normal preview window, and the icons remain intact - no blank thumbnails. I will be happy to look into this further with some more information.
- I've tried this with several applications. Is there a specific one producing the issue on your end, or is it all applications?
- Would you be willing to send me the complete configuration backup of your settings?
- A screenshot of what you're seeing is also always helpful. If you can post or send those over with the backup, I can see if I can recreate these conditions.
Thank you and best regards,
Adam McGuinness
Stardock Support Specialist