Unreal Engine Issues

Clean DocumentDB setup fails indexing

Source [Link Removed] The user has encountered the error log: MongoDB.Driver.MongoCommandException: Command createIndexes failed: Implicit collection creation not supported when creating indexes I ...

Missing libomp140 DLL causing crashes in Hair Card Generator plugin

EA Motive has run into a crash when using the hair card generator plugin. A missing DLL is preventing them from creating hair cards according to the initial investigation from their engineers. More ...

Skeletal mesh ddc key is always regenerated on load when LOD bones to remove are set

In FMeshBoneReduction::ReduceBoneCounts we are calling InvalidateDeriveDataCacheGUID.  If a user has specified bones in the Bones To Remove array for the mesh LOD, this will invalidate the guid.  Th ...

Visualization View Mode Shader Complexity when in Mobile Preview Vulkan with MMV will crash the editor

First Person Primitive

First Person Scale and First Person Field of View on camera components do not apply to the depth prepass when rendering First Person View meshes, leading to a mismatch between the depth pre-pass and ...

Missing Triangles on scaled MetaHuman assets with Nanite enabled

Additional information: only happens when all three conditions are true: the camera is very close to the character, the MH is Nanite, and a scaled mocap animation is appliedmaterial is opaque, shows ...

5.5.3 insights crashes when opening .utrace files with "RenderCommands,RDG,RHICommands" channels.

The customer provided reproduction steps and a trace file that crashes Insights. From the customer: manually placing if (!CurrentGraph) Unknown macro: { return; } nullchecks in RenderGraphInsi ...

Regression: Crash when saving the level blueprint of a world-partition map containing any node with an unconnected input pin of type "Gameplay Attribute Structure"

In UE 5.5, when the user attempts to save the level blueprint of a world-partition map, the Editor crashes if the BP contains any node with an input pin of type "Gameplay Attribute Structure", as lo ...

Synthetic benchmark is affected by Scalability Settings

Sumo Digital Ltd. has reported that the synthetic benchmark has skewed GPUIndex scores when changing graphics scalability settings (i.e. r.LumenScreenProbeGather.DownsampleFactor). They are currentl ...

CameraRig_Rail actor does not show last index for preview mesh

Do not show the last index in the preview mesh display of the CameraRig_Rail actor. The reproduction test case generates a ring of rails, but only the last index is not displayed. Recommended Cod ...