This is sort of a mess.
A number of iOS users have reported that they can no longer open any third-party app on their iPhone or iPad after syncing the devices with M1-based Macs. The apps have apparently crashed right after opening them, thereby making it impossible to use installed third-party apps.
The issue first surfaced around December of 2020, a month after the launch of the M1-based Macs.
The issue can be seen below:
All non-preinstalled apps crash upon launch (iPhone X and iPad 7th gen) from r/ios
One submitted user report offered the following:
tl;dr after I sync my iPhone X (on 14.3) with my M1 MBP (on 11.1), no third-party apps will open. Can’t install or update from App Store either; the progress circle will fill up and then immediately turn into the “cloud” download icon.
Another user commented that he was able to make the installed apps work again on the iPhone after connecting and syncing the device with an old Mac running macOS Catalina. However, what causes the bug is still unknown since even Apple Support couldn’t explain it.
On Accident I connected iPhone and MBP M1 via WLAN and synced…. Apps stoped working immediatly. Then connected to my old MBP (2012, latest Calatina) and synced. Apps are all working again.
If you own an M1-based Mac, the best workaround is to avoid syncing your Mac with an iOS device until Apple fixes the bug via future software updates.
Apple has yet to offer an official comment as to the issue.
Stay tuned for additional details as they become available.
Via 9to5Mac, Reddit, and discussions.apple.com
One reply on “Some iOS users cite third-party app crashes after syncing iPhones, iPads with M1-based Macs”
I filed a bug report FB8923749 and sys diagnose including my own tests back in December and they ignored it, it appears the apps think they are no longer signed, I also spent two hours on the phone to a 3rd lever apple tech and diagnostic logs were filed, Apple tech is so sloppy and they need to start firing the dead wood