My question is what Apple has changed recently that makes sideloaded apps close immediately after opening? Normaly i used MatrixInstaller to sideload apps and sign the app with my apple id. That worked fine until jan.28th. The only way to make it work right now is by making a new apple id without the 2FA from a windows computer within itunes. Who can explain to me in simple words what has changed. I know it is not ios related because ios 13 and ios14 al are affected by this change, so i suspect a change in the way apps are being signed has been made.