Windows 11 store apps showing blank white icons

Fresh install of Windows 11 - latest updates.  Starfield, Forza, Injustice - all purchased from the Microsoft Store.  Games run fine but after a few days they show the white page / blank icon.  Had one icon that remained and after running sfc /scannow that icon is now blank too.

Have seen a few posts similar to this without resolution.  Is there a way to contact MS directly?