Roon desktop app not responding on launch

Roon Core Machine

Windows 11
Intel i7 12700K
32 Gb
Nvidia Geforce RTX2070 Super
All latest updates and drivers

Networking Gear & Setup Details

Wired Ethernet → AmplifiHD router → 100Gb Fiber

Connected Audio Devices

Roon end point → Chord Poly/Mojo

Number of Tracks in Library

roughly 10000 tracks in library
but mainly use Qobuz

Description of Issue

I run Roon Server as a service and then use Roon Desktop app or Roon app on iPhone to control.
At launch of the Windows Roon App, it just hangs and shows “not responding”.
At the same time, I can use the iPhone Roon app to control the server and to play music on the Poly, so it seems unrelated to the server and isolated to the desktop app.
If I uninstall the desktop app and reinstall, it then works fine again. For a while. as this has happened around 10 times over the last 3 months.

Looking at Task Manager - I can see that while it’s not responding it’s using roughly 10% cpu continuously and 130Mb memory with no disk, network or gpu usage. Power however, is very high (presumably due to the cpu).

Happy to provide any logs or further screenshots when it happens again (I have just uninstalled / reinstalled, so it is working fine again now).