Colors on taskbar icons are getting mixed up

[ftamminga]

I have two instances of Visual Studio with each a distinct solution color. I have set the option to show the color in the taskbar icon. I use Windows 11 version 23H2 (22631.3007)
The pink solution was on my right screen, the blue on my left. Suddenly, the icon on my right, that should have been pink was blue also. The solution coloring itself was still ok. Even stranger, when I closed the pink instance on the right, the taskbar icon on the left went pink!

Steps to reproduce the behavior:

1. Open two instances of Visual Studio
2. Open two solutions
3. Set a color for each solution
4. Move each Visual Studio instance to its own monitor
5. Clicking in one solution's projects effects the taskbar icon color in the other Visual Studio instance.

I have not been able to exactly reproduce the error, but it fails always. It should not be difficult to reproduce.