Unreal Engine Issues
Unreal Engine Issues
StreamableManager completion callback can happen after being canceled in same frame
UE - CoreTech - Feb 16, 2024FStreamableHandle (used as part of the FStreamableManager system) has a CancelHandle function that stops it from calling any completion callbacks related to that handle (it could cancel the load req ...
Opening Materials and Material Functions with Vertex Interpolator node Results in Crash
UE - Graphics Features - May 23, 2018Per Licensee: Hello, We are migrating our project from 4.18 to 4.19.2 and we are encountering various crashes while opening our material and material functions. I'm adding a simple test case here. ...
SetStaticMesh does not replicate
UE - Networking - Jun 2, 2015Using OnRep_StaticMesh() in code or using the Set Static Mesh node does not replicate across server/client in game. ...
[CrashReport] UE4Editor_D3D11RHI!FD3D11DynamicRHI::RHISetShaderSampler() [d3d11commands.cpp:647]
UE - Graphics Features - Sep 20, 2017This is a common crash that has occurred since 4.16 for over 50 users. Unfortunately they have not provided any description of their actions when the crash occurred. The callstack has similarities ...
Crash on Level Load with Sequencer Event
UE - Anim - Sequencer - Nov 9, 2018Crash when changing maps with sequencers new event director. Confirmed in 4.22 MAIN at CL 4553454 ...
Data loss caused by C++ Child Actor Component when compiling Child BP
UE - Gameplay - Blueprint - Dec 22, 2016Having Child Actor Components that are set in code can cause data loss upon compiling the blueprint. In this particular scenario, there are two custom Actor classes involved, MainActor and SubActo ...
If remove the muted side from the two child tracks in sequencer, the remaining tracks will be muted forever
UE - Anim - Sequencer - Feb 4, 2022The cause was that the information remained in Rows Disabled of Track even though it returned to one Track by the delete operation from the state where there was a child Track of multiple rows. As ...
Lighting data wiped if sub level is hidden while rebuilding lighting for visible levels
UE - Graphics Features - Jan 11, 2017When building lighting now you can no longer have a hidden sub level and have it retain it's built light if it was previously built. For instance, if you have a persistent level and hide the sub-lev ...
[CrashReport] UE4Editor_Core!FName::GetDisplayNameEntry() [unrealnames.cpp:894]
UE - Foundation - Core - Aug 14, 2017This is a trending crash coming out of the 4.17.0 release. The same callstack also occurred during the 4.11 release, but otherwise hasn't had an occurrence until now. Users have not provided any de ...
Crash launching ES31 app on Android
UE - Platform - Mobile - Apr 9, 2018This has occurred so far using ES31 with Launch On to Android. It didn't occur with ES2 or Vulkan.Error: === Critical error: === Error: Error: Fatal error: [File:D:\Streams\Fortnite_Staging\Engin ...