Unreal Engine Issues

Long Movie Pipeline Renders cause Audio Crashes

This issue can temporarily be worked around by launching the editor with the "-nosound" argument which will disable audio recording. ...

Crash compiling a blueprint after changing a TMap value from Vector to Vector4

REGRESSION: Issue does not occur in 4.24 Crash occurs when the user changes a blueprint TMap value from Vector to Vector4 and then compiles the blueprint. This seems to only occur with TMaps, as ...

[CrashReport] UE4Editor-D3D11RHI!FD3D11RenderQueryBatcher::PerFrameFlush() [D3D11Query.cpp:45]

Generated from CrashReporter ...

Sequencer Media Tracks trigger crash when an ImageSource is added

The same callstack appears in 4.24.3 (CL-11590370) but only when playing a Sequence with a Media Track that has a ImgMediaSource and Media Texture set on it. These repro steps work for 4.25 and 4.26 ...

Crashes when changing parameters by changing the collection of the NiagaraParameterCollectionInstance

Niagara Mesh Renderer's ParticleColor is not reflected in raytraced reflections

Mesh's ParticleColor is not reflected in raytraced reflections Sprite Particles do not encounter this issue.  ...

Granular Synth stays silent since it cannot load the sound with Stream Caching enabled

Using Granular Synth with Stream Cache enabled, Granular Synth will stay silent since it cannot load the sound with Stream Caching turned on. This was reported and tested in 4.25 (CL-13144385). Thi ...

Inventor Assembly imports incomplete or missing geometry

It seems that UE4 has a problem with importing Inventor Assemblies and Subassemblies. Files are either the wrong orientation or missing their geometry completely. This was reported and tested in 4 ...

Enabling "Edit Layers" results in a loss of precision when importing an heightmap

Importing an heightmap while having Edit Layers enabled results in a loss of precision: [Image Removed] ...

Make sure GLTF importer can be call by script and blueprint