Garmin HRM not connecting since last update

Hi, it seems that the Garmin standard HRM-Belt (Soft-strap) is not connecting anymore. I have two of these belt, but none of it ist connecting to Zwift. Both work fine with my Fenix 3. My third one is a HRM-Run which is working fine. I tried also two different computer with different ANT+ dongles, but the problem exists on both pcs.

I asked in a FB-Zwift Group and it seems, that other users have the same issue with the soft-strap belt.

Help please!

I have a similar issue, but mine shows a fixed value of 73bpm, regardless or effort. Used to work fine!

i am a little bit disappointed too, as connects to my fenix2 & power pod fine.