Unreal Engine Issues

[CrashReport] Linux crash - /usr/lib/x86_64-linux-gnu/dri/radeonsi_dri.so()

This is a new Linux crash in 4.18.1. There are a few similar but different callstacks that reference dri/radeonsi_dri.so() I've attached a log, but none of the ones I've looked at appear to contai ...

Asset toolkit can crash because the toolkit host IsEnabled_Lambda capture a raw UObject pointer

We must capture weak pointer instead of a raw pointer ...

ActorPositionWS Material BP node can crash when used in Post Process material

The ActorPositionWS BP node calls GetActorWorldPosition() in HLSL which references Primitive.ActorWorldPosition. But GetActorWorldPosition() is not protected by an #if HAS_PRIMITIVE_UNIFORM_BUFFER ...

Crash (Assertion failed "SystemInstanceController->IsSolo()") when enabling "Start with Tick Enabled" on a Niagara Component

Currently, Niagara Components are only expected to have their TickComponent() method called when their system is marked as "Solo", which makes them be simulated individually. In the most common scen ...

Packaging a Project with Blueprint Nativization Requires Crash Reporter Client to be Build for Shipping

Packaging a project in 4.15 from Github will fail if you don't have Crash Reporter Client built for Shipping. If no Nativization options are enabled, it packages fine, without having to build CRC. ...

[CrashReport] Commandlet crash - UE4Editor_Engine!FAnimationUtils::CompressAnimSequenceExplicit() [animationutils.cpp:621]

This is an infrequent commandlet crash that has affected a number of users exclusively in 4.17.1 (possible regression from 4.17.0?). There are also two instances of older cases in 4.13 and 4.15, bu ...

After adding MovieSceneObjectPropertyTrack from BP or Python, clicking the pull down of the added track occurs crash

When MovieSceneObjectPropertyTrack is added from BP or Python, PropertyClass of UMovieSceneObjectPropertyTrack becomes null, so it crashes with the following processing of SPropertyMenuAssetPicker : ...

When the async loading thread is enabled the game sometimes crashes trying to construct a Blueprint Class GC token stream

[CrashReport] Linux crash - /usr/lib/nvidia-375/libGLX_nvidia.so.0()

This is a common Linux crash that has occurred since at least 4.14. From LogLogEditorViewport: Clicking on Actor (LMB): StaticMeshActor (pared_cubos15) LogRHI: Timed out while waiting for GPU to ...

[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 ...