If you have any test files that do not work, you can try sending to me at kevin@supermedium.com to try to test.
If the VR app does not detect the companion app, try connecting your headset to your PC while the companion app for about 10 seconds, and then open the VR app. This will do a manual discovery.
If you updated from another version and have issues, delete this folder: C:\Users<YOUR USERNAME>\AppData\Roaming\Supermedium
I will work hard to look into these issues today and test more. Thank you for coming to us!