How to use OpenMTB Maps with 28.20

Hello,

Since beta and as well now in final version 28.20, OpenMTB maps leave the Garmin Edge 1050 unusable and locked in bootloops as stated already in the beta forum. There is no response from Garmin Support other than: Don't use non-Garmin camps. As this is only reason I chose the Garmin over a Wahoo I cannot state how unstatisfying my experience with Garmin is. Does anyone have any idea on how to get the maps working again?

thanks.