Here we go.
+UE4\Sync\Engine\Source\Developer\BlueprintNativeCodeGen\Private\BlueprintNativeCodeGenManifest.cpp] [Line: 223]
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: Failed to identify the asset package that '/Game/Blueprints/LSS_LoadingScreenSystem/UI/Cogs/UI_LSS_Fade_Cogs_02' belongs to.
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: Stack:
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffb57ffb134 UE4Editor-BlueprintNativeCodeGen.dll!UnknownFunction ]
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffb58002626 UE4Editor-BlueprintNativeCodeGen.dll!UnknownFunction ]
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffb57ffe4cd UE4Editor-BlueprintNativeCodeGen.dll!UnknownFunction ]
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffb39fa29e4 UE4Editor-UnrealEd.dll!UnknownFunction ]
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffb3a01d3e4 UE4Editor-UnrealEd.dll!UnknownFunction ]
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffb39e7a79b UE4Editor-UnrealEd.dll!UnknownFunction ]
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffb39ead0bf UE4Editor-UnrealEd.dll!UnknownFunction ]
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff639a1ed22 UE4Editor-Cmd.exe!UnknownFunction ]
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff639a15783 UE4Editor-Cmd.exe!UnknownFunction ]
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff639a159ea UE4Editor-Cmd.exe!UnknownFunction ]
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff639a248da UE4Editor-Cmd.exe!UnknownFunction ]
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff639a2584e UE4Editor-Cmd.exe!UnknownFunction ]
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffb846681f4 .DLL!UnknownFunction ]
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffb8742a251 ntdll.dll!UnknownFunction ]
ProcessResult.StdOut: LogInit: Display: LogOutputDevice: Error: end: stack for UAT
ProcessResult.StdOut: LogInit: Display: LogClass: Warning: FDoNNavigationQueryData::Origin is not initialized properly
ProcessResult.StdOut: LogInit: Display: LogClass: Warning: FDoNNavigationQueryData:estination is not initialized properly
ProcessResult.StdOut: LogInit: Display: LogAutomationTest: Warning: FDoNNavigationQueryData::Origin is not initialized properly
Around same time, I had those problems with navigation after adding your pack the FDoNNavigationQueryData error also appeared.
It comes and goes. Very strangely too. When I load the project some times the navigation data is there with everything green. Some times it is not. Some times only half the area.
That though falls into the engine and level streaming. Pick it up and shake it seems to fix it SOME times.
I think from Migrating the cog asset is broken 
It’s there with no redirects but just does not want to stop returning that error.