Unreal Engine Issues

Data Asset Deserialization crash after upgrading 4.19.2 to 421.1

The User has provided an extensive log of their code base setup, and the process leading up to when the Assert occurs. "Our game mode & player state FSM are setup in a data driven manor using UDa ...

Editor Crashes when copying/pasting a custom event function that was within a separate function to an event graph if the custom event was created in another blueprint

Editor crashes when a custom event node is called as a function within a different blueprint in a separate function, then copied and pasted into the event graph of the second blueprint, the executio ...

[CrashReport] Assertion failed on Linux: SharedContext.hGLContext in OpenGLLinux.cpp

This is a top community crash occurring on Linux. The two linked CrashGroups have nearly identical callstacks. A log file is attached. Additional information is currently unavailable. Callstack f ...

When using ProceduralFoliageVolume, ActorFoliage can be used even if World Partition is enabled in UE5.0

UE5.0 does not support ActorFoliage at Levels where World Partition is enabled ( [Link Removed] ), but ActorFoliage will work via ProceduralFoliageVolume. And when you cook the level you will get an ...

[CrashReport] Mac/Metal crash - Assertion failed: (PixelShader->Bindings.InOutMask

This is a low frequency but trending crash coming out of 4.18. User DescriptionsAttempting to open a copied/converted from 4.16.3 project on 4.18 preview 4. Problem arose after preview 3. Was able ...

[CrashReport] UE4Editor-CoreUObject.dylib!UObject::Rename()

This is an infrequent Mac crash that has occurred for a few users in 4.17. Users have not provided any description of their actions when the crash occurred. The callstack has a few similarities to ...

Circularly referenced blueprints cause stack overflow in a package game without IOStore

[CrashReport] UE4Editor-MetalRHI.dylib!FMetalRHICommandContext::RHIEndDrawIndexedPrimitiveUP()

This is a trending Mac/Metal crash in the 4.18 release, although although it has existed with low frequency since at least the 4.16 release. Users have not provided any descriptions of their actions ...

Unknown force is applied to the cloth when changing the skeletal mesh LoD with cloth.

There are 3 issuesEach particles don't restore its previous position. Which is for calculating velocity by verlet iteration.The previous transform is cleared by current transform. It provides zero v ...

Shipping build crash when unplugging then replugging Oculus HMD

Game crashes in shipping build when un-pluging the Oculus HMD, then plugging it back in. Confirmed in 4.13.2 from the launcher, did not repro via same steps in 4.14 preview 3 ...