Description

This Jira was created from CrashReports submitted by the public due to the high number of occurrences.

Error message:

Assertion failed: Package->IsFullyLoaded() [Link Removed] [Line: 2296]

Source Context:

 2286       UE_LOG(LogNetPackageMap, Error, TEXT("GetObjectFromNetGUID: Package is not fully loaded, but isn't async loading! Path: %s, NetGUID: %s"), *CacheObjectPtr->PathName.ToString(), *NetGUID.ToString());
 2287       }
 2288       
 2289       return NULL;
 2290       }
 2291       else
 2292       {
 2293       // If package isn't fully loaded, flush async loading now
 2294       FlushAsyncLoading(); 
 2295       check(Package->IsFullyLoaded());
 2296       }
 2297       }
 2298       }
 2299       
 2300 ***** if ( CacheObjectPtr->NetworkChecksum != 0 && !CVarIgnoreNetworkCheckumMismatch.GetValueOnGameThread() )
 2301       {
 2302       const uint32 NetworkChecksum = GetNetworkChecksum( Object );
 2303       
 2304       if ( CacheObjectPtr->NetworkChecksum != NetworkChecksum )
 2305       {
 2306       if ( NetworkChecksumMode == NETCHECKSUM_SaveAndUse )
 2307       {
 2308       UE_LOG( LogNetPackageMap, Warning, TEXT( "GetObjectFromNetGUID: Network checksum mismatch. FullNetGUIDPath: %s, %u, %u" ), *FullNetGUIDPath( NetGUID ), CacheObjectPtr->NetworkChecksum, NetworkChecksum );
 2309       
 2310       CacheObjectPtr->bIsBroken = true;
 2311       return NULL;
 2312       }
 2313       else
 2314       {
 2315       UE_LOG( LogNetPackageMap, Verbose, TEXT( "GetObjectFromNetGUID: Network checksum mismatch. FullNetGUIDPath: %s, %u, %u" ), *FullNetGUIDPath( NetGUID ), CacheObjectPtr->NetworkChecksum, NetworkChecksum 

Most recent user affected CL: 3013449

Logs:
[Link Removed]
[Link Removed]
[Link Removed]

Related Issues: UE-21394

Steps to Reproduce
  1. Download [Link Removed] zipped project and open
  2. If it does not open to the Olympia map by default, open the "Olympia" map
  3. Make sure in "Play Mode and Play Settings" that "Run Dedicated Server" is selected
  4. Play in Editor: Selected Viewport
    RESULT: Crash
    EXPECTED: To open the selected map for testing
    *Note: If editor does not crash, refer to video from AnswerHub post (See comment from Steve H.)
Callstack
UE4Editor_Engine!FNetGUIDCache::GetObjectFromNetGUID() packagemapclient.cpp:2301 
UE4Editor_Engine!UPackageMapClient::InternalLoadObject() packagemapclient.cpp:785 
UE4Editor_Engine!UPackageMapClient::InternalLoadObject() packagemapclient.cpp:678 
UE4Editor_Engine!UPackageMapClient::ReceiveNetGUIDBunch() packagemapclient.cpp:989 
UE4Editor_Engine!UChannel::ReceivedRawBunch() datachannel.cpp:303 
UE4Editor_Engine!UNetConnection::ReceivedPacket() netconnection.cpp:1101 
UE4Editor_Engine!UNetConnection::ReceivedRawPacket() netconnection.cpp:556 
UE4Editor_OnlineSubsystemUtils!UIpNetDriver::TickDispatch() ipnetdriver.cpp:203 
UE4Editor_Engine!TBaseUObjectMethodDelegateInstance<0,UNetDriver,void __cdecl() delegateinstancesimpl_variadics.inl:852 
UE4Editor_Engine!TBaseMulticastDelegate<void,float>::Broadcast() delegatesignatureimpl_variadics.inl:921 
UE4Editor_Engine!UWorld::Tick() leveltick.cpp:1107 
UE4Editor_UnrealEd!UEditorEngine::Tick() editorengine.cpp:1349 
UE4Editor_UnrealEd!UUnrealEdEngine::Tick() unrealedengine.cpp:368 
UE4Editor!FEngineLoop::Tick() launchengineloop.cpp:2775 
UE4Editor!GuardedMain() launch.cpp:148 
UE4Editor!GuardedMainWrapper() launchwindows.cpp:126 
UE4Editor!WinMain() launchwindows.cpp:200 
UE4Editor!__scrt_common_main_seh() exe_common.inl:264 
kernel32!<Unknown> 
ntdll!<Unknown> 

Have Comments or More Details?

There's no existing public thread on this issue, so head over toAnswerHub just mention UE-32568 in the post.

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Fixed
ComponentNetworking
Affects Versions4.104.114.12
Target Fix4.16
Fix Commit3392446
CreatedJun 28, 2016
ResolvedApr 13, 2017
UpdatedMay 15, 2017