The VS extension CodeMaid has the option "Show build progress on Visual Studio icon in Windows taskbar" in the "Progressing" category. It seems to be active by default. I'm not sure if that's necessary anymore because Visual Studio already shows some progress on the icon on its own.
If that option of the other extension is active, the solution overlay icon disappears when that progress is shown. And it won't come back until Visual Studio is restarted (or maybe the solution is reopened).
This may not be fixable in the Solution Icon extension, but a compatibility note about it couldn't hurt on the readme page here and in the VS Marketplace.
The VS extension CodeMaid has the option "Show build progress on Visual Studio icon in Windows taskbar" in the "Progressing" category. It seems to be active by default. I'm not sure if that's necessary anymore because Visual Studio already shows some progress on the icon on its own.
If that option of the other extension is active, the solution overlay icon disappears when that progress is shown. And it won't come back until Visual Studio is restarted (or maybe the solution is reopened).
This may not be fixable in the Solution Icon extension, but a compatibility note about it couldn't hurt on the readme page here and in the VS Marketplace.