Hi Gerry, we have come across this issue as well. For us, the issue only occurs when we specify a path to an icon for the app in the application group. If we leave this blank, then the app doesn't duplicate. (but then we are left with a low-resolution image).
I have confirmed this does not happen on the browser or the deprecated Remote Desktop app. We tested several versions of the Windows App:
| Version | Result |
|---|---|
| 2.0.757.0 | Shows duplicate apps |
| 2.0.706.0 | Shows duplicate apps |
| 2.0.704.0 | Shows duplicate apps |
| 2.0.660.0 | Shows duplicate apps |
| 2.0.633.0 | Shows duplicate apps |
| 2.0.559.0 | Shows duplicate apps |