On the Di2 BT-dongle and strange issue

Has anyone seen the strange issue with a custom app and the Di2 BT where the enabled sensor results in the GPS dropping out on an Edge 530 (which is a bummer when you have auto-stop). It works fine if you use a native profile and fields but if I have my app. I never get any speed if the Di2 is enabled and found before I start my app and if I start my app, GPS drops out when Di2 is found. If I exit my app, there is a red bar across the signal strength bars. Even if I somehow would have a bug in my app, how can it break GPS on the device level

You can probably tell by know I've missed the forums while they were down. This is my last post for tonight ;-)