SkyDemon keeps ‘waiting for device’

I followed all instructions, SafeSky is showing all green dots, but doesn’t ahownupnin my SkyDemon app. It worked one flight, then nothing on return and since. No changes is hard or software. I use an iPhone 12 Pro.

I am not a technical specialist. But you can check in the SafeSky preferences that GDL90 is enabled and that Automatic Device Discovery is also enabled.
Then, in SkyDemon, click on Go Flying and choose Use GDL90 Compatible Device.

I am not sure, because I don’t use IOS, but I think you have to be on version 13 of IOS.

Have nice flights