v4.5.0 (BETA) No Bluetooth connection

I switched to the beta yesterday. The bike is connected to Zwift (PC) via Bluetooth for a few seconds and then loses the signal. And it does not come back either. Anyone else the problem? Will probably go back to 0.046 for now. 

Edit: Bluetooth connection via Companion App works.  However, I still can't get the PC connected directly. Should not be the Wifi/BT adapter - which is not even 1 year old.

Edit 2: Ok, I guess I found a solution to my problem with the BT connection between the Bike and the PC. Since my Bike was already connected to my PC, it was no longer recognized due to the internal renaming from "Smart Bike" to "NEO Bike Smart".

My solution:
1. Remove the bike - PC pairing
2. Open Tacx Desktop App and connect bike (may take a while)
3. Have the PC search for a new Bluetooth device (NEO Bike Smart xxxxx)

After disconnecting in the Tacx Desktop App and closing it, I had a stable connection again in Zwift.