Connectivity problems concerning heart rate after update

[manno02]

After the January update the connection between external hr sensor (COROS) and watch is not working properly. When starting an activity the connection ist on but after the first stop at a traffic light and with Autostop the connection is lost and doesn’t come back. After syncing when stopping no hr data are transferred. I tried to disconnect and connect again but this doesn’t help. Is there a solution for this problem ?
Kind regards
Axel