Hello,
I made an app through Xcode and wanted to run it on my device for once. The app installed into my device, but couldn't run it because the app comes from an untrusted developer. I went into the settings app to try to approve/accept the profile, but nothing to accept was there.
I tested a few things to try to figure out what the problem is. I tested to run the app on my previous device and it worked fine, I could approve/accept the profile. Then I used another Apple ID in Xcode to "sign" the app, and I could approve/accept the profile too. I don't understand why I can't make it to appear (the approval section under VPN and device management) while building the app for my new device using my first Apple ID.
For me changing Apple ID to "sign" my app isn't a solution, for now it helps me testing my apps on an actual device, but in the long term I really would like to make it work with my main Apple ID.
I believe I do have a problem with my certificates/profiles somehow, but as I don't pay anymore I don't have the access to this section anymore. Last time I had this problem, the Apple support fixed it for me, saying that there was a problem as I had an Apple Developer Program membership before, and not anymore. But today the Apple support redirected me to the forums and couldn't fix the problem apparently.
I hope everything was clear. Thanks!