The old Xcode 15.4 saved profiles in ~/Library/MobileDevice/Provisioning\ Profiles.
The new Xcode 16 saves profiles in ~/Library/Developer/Xcode/UserData/Provisioning\ Profiles.
Fire searches the profiles in the old folder and now doesn’t seem to find them.
Now i have to copy manually the files from folder to the other one but if Xcode is running it deletes them, but at least I have a workaround.