Same problem: Note that building my App with Rosetta on Macbook Air M1 and xCode 12.4 do build, but shows a white screen on emulator.  In console this error: 2021-02-05 00:34:23.204588+0100 myApp[31225:789860] [db] Failed to initialize client context with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x4b64f053 8d1364ff 0b68dbfb 9e7f437e ... d8889279 df4097f1 }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0x4b3fda1a 658aac51 e905a4b9 3f769913 ... 73e7d3c9 4a353cfc }} 2021-02-05 00:34:23.205328+0100 myApp[31225:789860] [db] _LSSchemaConfigureForStore failed with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x4b64f053 8d1364ff 0b68dbfb 9e7f437e ... d8889279 df4097f1 }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0x4b3fda1a 658aac51 e905a4b9 3f769913 ... 73e7d3c9 4a353cfc }} 2021-02-05 00:34:23.213108+0100 myApp[31225:789860] [db] Failed to initialize client context with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x4b64f053 8d1364ff 0b68dbfb 9e7f437e ... d8889279 df4097f1 }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0x4b3fda1a 658aac51 e905a4b9 3f769913 ... 73e7d3c9 4a353cfc }} 2021-02-05 00:34:23.213945+0100 myApp[31225:789860] [db] _LSSchemaConfigureForStore failed with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x4b64f053 8d1364ff 0b68dbfb 9e7f437e ... d8889279 df4097f1 }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0x4b3fda1a 658aac51 e905a4b9 3f769913 ... 73e7d3c9 4a353cfc }} 2021-02-05 00:34:23.214031+0100 myApp[31225:789860] [db] Failed to initialize client context with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x4b64f053 8d1364ff 0b68dbfb 9e7f437e ... d8889279 df4097f1 }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0x4b3fda1a 658aac51 e905a4b9 3f769913 ... 73e7d3c9 4a353cfc }} 2021-02-05 00:34:23.215290+0100 myApp[31225:789860] [db] _LSSchemaConfigureForStore failed with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x4b64f053 8d1364ff 0b68dbfb 9e7f437e ... d8889279 df4097f1 }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0x4b3fda1a 658aac51 e905a4b9 3f769913 ... 73e7d3c9 4a353cfc }} 2021-02-05 00:34:23.215391+0100 myApp[31225:789860] [db] Failed to initialize client context with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x4b64f053 8d1364ff 0b68dbfb 9e7f437e ... d8889279 df4097f1 }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0x4b3fda1a 658aac51 e905a4b9 3f769913 ... 73e7d3c9 4a353cfc }}

Same problem: Note that building my App with Rosetta on Macbook Air M1 and xCode 12.4 do build, but shows a white screen on emulator.  In console this error: 2021-02-05 14:30:25.825210+0100 MyApp[56865:1895569] [db] _LSSchemaConfigureForStore failed with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x64ffa485 dd556ca7 e49bc38c da04e080 ... e817a119 c3dad3ce }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0xf74b7cf2 146c7320 f164d932 556def6c ... e5c99aa7 f132eec7 }} 2021-02-05 14:30:25.825935+0100 MyApp[56865:1895569] [db] Failed to initialize client context with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x64ffa485 dd556ca7 e49bc38c da04e080 ... e817a119 c3dad3ce }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0xf74b7cf2 146c7320 f164d932 556def6c ... e5c99aa7 f132eec7 }} 2021-02-05 14:30:25.827823+0100 MyApp[56865:1895569] [db] _LSSchemaConfigureForStore failed with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x64ffa485 dd556ca7 e49bc38c da04e080 ... e817a119 c3dad3ce }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0xf74b7cf2 146c7320 f164d932 556def6c ... e5c99aa7 f132eec7 }} 2021-02-05 14:30:25.827908+0100 MyApp[56865:1895569] [db] Failed to initialize client context with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x64ffa485 dd556ca7 e49bc38c da04e080 ... e817a119 c3dad3ce }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0xf74b7cf2 146c7320 f164d932 556def6c ... e5c99aa7 f132eec7 }} 2021-02-05 14:30:25.828663+0100 MyApp[56865:1895569] [db] _LSSchemaConfigureForStore failed with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x64ffa485 dd556ca7 e49bc38c da04e080 ... e817a119 c3dad3ce }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0xf74b7cf2 146c7320 f164d932 556def6c ... e5c99aa7 f132eec7 }} 2021-02-05 14:30:25.828765+0100 MyApp[56865:1895569] [db] Failed to initialize client context with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x64ffa485 dd556ca7 e49bc38c da04e080 ... e817a119 c3dad3ce }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0xf74b7cf2 146c7320 f164d932 556def6c ... e5c99aa7 f132eec7 }} 2021-02-05 14:30:25.830113+0100 MyApp[56865:1895569] [db] _LSSchemaConfigureForStore failed with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x64ffa485 dd556ca7 e49bc38c da04e080 ... e817a119 c3dad3ce }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0xf74b7cf2 146c7320 f164d932 556def6c ... e5c99aa7 f132eec7 }} 2021-02-05 14:30:25.830204+0100 MyApp[56865:1895569] [db] Failed to initialize client context with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x64ffa485 dd556ca7 e49bc38c da04e080 ... e817a119 c3dad3ce }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0xf74b7cf2 146c7320 f164d932 556def6c ... e5c99aa7 f132eec7 }} 2021-02-05 14:30:25.831817+0100 MyApp[56865:1895569] [db] _LSSchemaConfigureForStore failed with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x64ffa485 dd556ca7 e49bc38c da04e080 ... e817a119 c3dad3ce }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0xf74b7cf2 146c7320 f164d932 556def6c ... e5c99aa7 f132eec7 }} 2021-02-05 14:30:25.831914+0100 MyApp[56865:1895569] [db] Failed to initialize client context with error Error Domain=NSOSStatusErrorDomain Code=-10817 "(null)" UserInfo={_LSFunction=_LSSchemaConfigureForStore, ExpectedSimulatorHash={length = 32, bytes = 0x64ffa485 dd556ca7 e49bc38c da04e080 ... e817a119 c3dad3ce }, _LSLine=405, WrongSimulatorHash={length = 32, bytes = 0xf74b7cf2 146c7320 f164d932 556def6c ... e5c99aa7 f132eec7 }}

Same issue: MacBook M1 and AirPods Pro. Not switching between devices.