Same error when I try to install NVIDIA DLSS plugin.
Here is the related log in EpicGamesLauncher.
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: AppId is: 89efe5924d3d467c839449ab6ab52e7f:4ec09439421f49acb02535fe585a49eb:NVIDIADL2b0768804a50V1
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: FAppInstallRequestConfig:
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: .SourcePath:
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: .DestinationPath: F:\UE_5.4
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: .SourceProjectName:
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: .OverrideEngineAssociation:
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: .DestinationProjectName:
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: .bIsExecutable: true
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: .bIsApplication: false
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: .bIsEngine: false
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: .bRequiresAuthExchangeCode: false
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: .bIsCodeProject: false
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: .bDownloadLatest: false
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: .bOverwriteExisting: false
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: .bCreateShortcut: true
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: .bCheckMainAppInstalledForDlc: false
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: .MainAppId: (null):(null):(null)
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: Found 0 DLC to INSTALL
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: Found 0 DLC to UNINSTALL
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: Found 0 DLC to UPDATE
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: Found 0 Mod to INSTALL
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: Found 0 Mod to UNINSTALL
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: Found 0 Mod to UPDATE
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: Add INSTALL action for artifact 89efe5924d3d467c839449ab6ab52e7f:4ec09439421f49acb02535fe585a49eb:NVIDIADL2b0768804a50V1:
[2024.10.24-02.22.52:228][140]LogCommunityPortalAppManager: RequestAppInstall: Creating and queueing task in patcher artifact 89efe5924d3d467c839449ab6ab52e7f:4ec09439421f49acb02535fe585a49eb:NVIDIADL2b0768804a50V1:
[2024.10.24-02.22.52:244][141]LogCommunityPortalPatcher: EnumeratePatchingApps: Task for 89efe5924d3d467c839449ab6ab52e7f:4ec09439421f49acb02535fe585a49eb:NVIDIADL2b0768804a50V1: app is in the QueuedTasks array under index: 0
[2024.10.24-02.22.52:336][146]FCommunityPortalPatcher: Change State Idle->Patching
[2024.10.24-02.22.53:976][244]LogOnline: Warning: OSS: Invalid response. CorrId=UE4-7017170c4d72875b4a6d068817856413-18A02A6C4A47534F916372BAD3FBD249-F8B7FCA2473198636B83169D939D8ABD code=404 errorcode=JsonErrorUnknownCode errormessage=Server error of type JsonErrorUnknownCode errorraw={"Not Found":"Could not find any manifest download info with artifactId=NVIDIADL2b0768804a50V1"}
[2024.10.24-02.22.53:976][244]LogOnlineFAB: Warning: OSS: GetVaultLibrary_HttpRequestComplete - request failed
[2024.10.24-02.22.53:976][244]LogPortal: Error: FCommunityPortalOSSImpl::OnHandleRequestFabManifestComplete failed! 0 0
[2024.10.24-02.22.53:991][245]FCommunityPortalPatcher: Change State Patching->Failed
[2024.10.24-02.22.53:991][245]LogAutoUpdateService: HandleAppCanceled: CanceledAppId: 89efe5924d3d467c839449ab6ab52e7f:4ec09439421f49acb02535fe585a49eb:NVIDIADL2b0768804a50V1
[2024.10.24-02.22.53:991][245]LogAutoUpdateService: HandlePatchComplete: The installation failed for 89efe5924d3d467c839449ab6ab52e7f:4ec09439421f49acb02535fe585a49eb:NVIDIADL2b0768804a50V1: app in any reason, the installer will no longer try to perform an automatic update again until the user specifies it
[2024.10.24-02.22.53:996][245]LogPortal: Error: FAlertReporter: Reporting Alert code: MD-0011-0