Assertion failed: RequestOffset >= PrecacheStartPos && RequestOffset + RequestSize <= PrecacheEndPos When Launching to Oculus Quest.

Hi,
I have been fighting through errors for quite a while to get a project to run on the quest, but this i cant make any sense of can anyone work out what the issue is? i have tried empty project which will run on the quest with the same settings
Thanks,

LogPlayLevel:   07-12 11:52:57.760 11307 11322 D UE4     :
LogPlayLevel: Error:   07-12 11:52:57.760 11307 11322 D UE4     : [2019.07.12-10.52.57:760][  0]LogAndroid: Error: === Critical error: ===
LogPlayLevel: Error:   07-12 11:52:57.760 11307 11322 D UE4     : [2019.07.12-10.52.57:760][  0]LogAndroid: Error:
LogPlayLevel: Error:   07-12 11:52:57.760 11307 11322 D UE4     : [2019.07.12-10.52.57:760][  0]LogAndroid: Error: Assertion failed: RequestOffset >= PrecacheStartPos && RequestOffset + RequestSize <= PrecacheEndPos [File:D:\Program Files\Epic Games\UnrealEngine-4.22\Engine\Source\Runtime\CoreUObject\Private\Serialization\AsyncLoading.cpp] [Line: 8054]
LogPlayLevel: Error:   07-12 11:52:57.760 11307 11322 D UE4     : [2019.07.12-10.52.57:760][  0]LogAndroid: Error:
LogPlayLevel: Error:   07-12 11:52:57.760 11307 11322 D UE4     : [2019.07.12-10.52.57:760][  0]LogAndroid: Error: [Callstack] 0x0000007F8B69E0C0 (0x00000000043730C0) libUE4.so!FDebug::CheckVerifyFailedImpl(char const*, char const*, int, char16_t const*, ...)  []
LogPlayLevel: Error:   07-12 11:52:57.760 11307 11322 D UE4     : [2019.07.12-10.52.57:760][  0]LogAndroid: Error: [Callstack] 0x0000007F8B90BC24 (0x00000000045E0C24) libUE4.so!FArchiveAsync2::PrecacheInternal(long long, long long, bool)  []
LogPlayLevel: Error:   07-12 11:52:57.760 11307 11322 D UE4     : [2019.07.12-10.52.57:760][  0]LogAndroid: Error: [Callstack] 0x0000007F8B8F1EB8 (0x00000000045C6EB8) libUE4.so!FAsyncPackage::MakeNextPrecacheRequestCurrent()  []
LogPlayLevel: Error:   07-12 11:52:57.760 11307 11322 D UE4     : [2019.07.12-10.52.57:760][  0]LogAndroid: Error: [Callstack] 0x0000007F8B8EC0BC (0x00000000045C10BC) libUE4.so!FAsyncPackage::ProcessImportsAndExports_Event()  []
LogPlayLevel: Error:   07-12 11:52:57.760 11307 11322 D UE4     : [2019.07.12-10.52.57:760][  0]LogAndroid: Error: [Callstack] 0x0000007F8B8EBAB4 (0x00000000045C0AB4) libUE4.so!FAsyncPackage::Event_ProcessImportsAndExports()  []
LogPlayLevel: Error:   07-12 11:52:57.760 11307 11322 D UE4     : [2019.07.12-10.52.57:760][  0]LogAndroid: Error: [Callstack] 0x0000007F8B8F5688 (0x00000000045CA688) libUE4.so!FAsyncLoadingThread::ProcessAsyncLoading(int&, bool, bool, float, FFlushTree*)  []
LogPlayLevel: Error:   07-12 11:52:57.760 11307 11322 D UE4     : [2019.07.12-10.52.57:760][  0]LogAndroid: Error: [Callstack] 0x0000007F8B8FCB58 (0x00000000045D1B58) libUE4.so!FAsyncLoadingThread::TickAsyncThread(bool, bool, float, bool&, FFlushTree*)  []
LogPlayLevel: Error:   07-12 11:52:57.761 11307 11322 D UE4     : [2019.07.12-10.52.57:761][  0]LogAndroid: Error: [Callstack] 0x0000007F8B8FBC4C (0x00000000045D0C4C) libUE4.so!FAsyncLoadingThread::TickAsyncLoading(bool, bool, float, FFlushTree*)  []
LogPlayLevel: Error:   07-12 11:52:57.761 11307 11322 D UE4     : [2019.07.12-10.52.57:761][  0]LogAndroid: Error: [Callstack] 0x0000007F8B8FF344 (0x00000000045D4344) libUE4.so!FlushAsyncLoading(int)  []
LogPlayLevel: Error:   07-12 11:52:57.761 11307 11322 D UE4     : [2019.07.12-10.52.57:761][  0]LogAndroid: Error: [Callstack] 0x0000007F8BAA4880 (0x0000000004779880) libUE4.so!LoadPackageInternal(UPackage*, char16_t const*, unsigned int, FLinkerLoad*, FArchive*, FUObjectSerializeContext*)  []
LogPlayLevel: Error:   07-12 11:52:57.761 11307 11322 D UE4     : [2019.07.12-10.52.57:761][  0]LogAndroid: Error: [Callstack] 0x0000007F8BAA2E2C (0x0000000004777E2C) libUE4.so!LoadPackage(UPackage*, char16_t const*, unsigned int, FArchive*, FUObjectSerializeContext*)  []
LogPlayLevel: Error:   07-12 11:52:57.761 11307 11322 D UE4     : [2019.07.12-10.52.57:761][  0]LogAndroid: Error: [Callstack] 0x0000007F8DBEC258 (0x00000000068C1258) libUE4.so!UEngine::LoadMap(FWorldContext&, FURL, UPendingNetGame*, FString&)  []
LogPlayLevel: Error:   07-12 11:52:57.761 11307 11322 D UE4     : [2019.07.12-10.52.57:761][  0]LogAndroid: Error: [Callstack] 0x0000007F8DBE8EB8 (0x00000000068BDEB8) libUE4.so!UEngine::Browse(FWorldContext&, FURL, FString&)  []
LogPlayLevel: Error:   07-12 11:52:57.761 11307 11322 D UE4     : [2019.07.12-10.52.57:761][  0]LogAndroid: Error: [Callstack] 0x0000007F8D469AE4 (0x000000000613EAE4) libUE4.so!UGameInstance::StartGameInstance()  []
LogPlayLevel: Error:   07-12 11:52:57.761 11307 11322 D UE4     : [2019.07.12-10.52.57:761][  0]LogAndroid: Error: [Callstack] 0x0000007F8D455114 (0x000000000612A114) libUE4.so!UGameEngine::Start()  []
LogPlayLevel: Error:   07-12 11:52:57.761 11307 11322 D UE4     : [2019.07.12-10.52.57:761][  0]LogAndroid: Error: [Callstack] 0x0000007F8AFC59FC (0x0000000003C9A9FC) libUE4.so!FEngineLoop::Init()  []
LogPlayLevel: Error:   07-12 11:52:57.762 11307 11322 D UE4     : [2019.07.12-10.52.57:761][  0]LogAndroid: Error: [Callstack] 0x0000007F8AFC42EC (0x0000000003C992EC) libUE4.so!AndroidMain(android_app*)  []
LogPlayLevel: Error:   07-12 11:52:57.762 11307 11322 D UE4     : [2019.07.12-10.52.57:762][  0]LogAndroid: Error: [Callstack] 0x0000007F8AFD0774 (0x0000000003CA5774) libUE4.so!android_main()  []
LogPlayLevel: Error:   07-12 11:52:57.762 11307 11322 D UE4     : [2019.07.12-10.52.57:762][  0]LogAndroid: Error: [Callstack] 0x0000007F8AFEB534 (0x0000000003CC0534) libUE4.so![Unknown]()  []
LogPlayLevel: Error:   07-12 11:52:57.762 11307 11322 D UE4     : [2019.07.12-10.52.57:762][  0]LogAndroid: Error: [Callstack] 0x0000007FAE0D6D60 (0x0000000000075D60) libc.so![Unknown]()  []
LogPlayLevel: Error:   07-12 11:52:57.762 11307 11322 D UE4     : [2019.07.12-10.52.57:762][  0]LogAndroid: Error: [Callstack] 0x0000007FAE07F17C (0x000000000001E17C) libc.so![Unknown]()  []
LogPlayLevel: Error:   07-12 11:52:57.762 11307 11322 D UE4     : [2019.07.12-10.52.57:762][  0]LogAndroid: Error:
LogPlayLevel: Error:   07-12 11:52:57.762 11307 11322 D UE4     : [2019.07.12-10.52.57:762][  0]LogAndroid: Error:
LogPlayLevel: Error:   07-12 11:52:57.762 11307 11322 D UE4     : [2019.07.12-10.52.57:762][  0]LogAndroid: Error:
LogPlayLevel: Error:   07-12 11:52:57.764 11307 11322 D UE4     : [2019.07.12-10.52.57:762][  0]LogAndroid: Error: