At least the support sent a reaction:
„The frequent disconnections and reconnections are occurring on the BLE firmware (Bluetooth) side.
It is worth noting that the longest disconnection period of the heart rate belt was approximately three minutes, after which it successfully reconnected. Therefore, the issue is not an inability to reconnect, but rather frequent disconnecting and reconnecting.
Based on the current analysis, the issue appears to be related to the connection stability between the BLE firmware and the sensor.
However, the current logs do not provide enough evidence for us to draw a definitive conclusion. In order to further diagnose the issue, we need to attempt to reproduce the problem. Therefore, we will now escalate this matter to our testing team for reproduction.“
We will see …