Unreal Engine Issues
Unreal Engine Issues
Using Open Source to open a StreamingMediaSource on Android causes a slight freeze on some devices
Media Framework - Mar 11, 2019Calling Open Source to open a Streaming Media Source causes a freeze to occur on Android when it is called. This does not happen on all devices. When testing this issue, I reproduced this issue on a ...
Mirror Data Table Asset Not Mirroring Expected Curve Names
UE - Runtime - Animation - Sep 17, 2025When mirroring the MetaHuman Face_Archetype_Skeleton it has been noticed that some curve names are not mirrored correctly (such as head_lod0_mesh_mouth_lowerLipDepress_left) while a large number of ...
Open Formats: FBX Reimport - interchange reimport bug 5.7 -> 5.8
UE - VEI - Open File Formats - Oct 16, 2026This is a related bug to this interchange fbx one [Link Removed] that is also triggered by reimporting a 5.7 mesh in 5.8 It looks like the asset import data has a property called `node_unique_id` ...
Character Movement values do not reset to defaults
Tools - Mar 9, 2015Character Movement values do not reset to defaults. Changing a value and then using the arrow to Reset to Default updates the number displayed in the Details panel, but the value does not update dur ...
RecastNavMesh is not generated at loaded sublevel
UE - AI - Aug 16, 2018RecastNavMesh is not generated at the sub level dynamically added in C ++ in 4.20. In 4.18, 4.19 it was generated normally. Probably, changes to the large number about NavMesh systems from 4.19 to ...
Crashes in movie player on Android
UE - Platform - Mobile - Apr 23, 2015There are a number of reported movie crash issues, but this report likely covers the main cause. Garbage collection changed in Android 4.0 and we are triggering a check that does not happen with ba ...
ObjectPivotPoint does not work with instanced Nanite meshes
UE - Rendering - Architecture - Materials - Nov 17, 2022Regression: Nanite Foliage is a new feature in 5.1, so this issue is not reproduceable in 5.0. Notes about this new support can be found under Nanite Improvements in https://docs.unrealengine.com/5. ...
Fix textureLOD for PowerVR workaround
UE - Platform - Mobile - Mar 9, 2015https://forums.unrealengine.com/showthread.php?61511-A-few-questions-in-regard-to-texture-compression-reflections-and-deployment&highlight=powervr This code was added back on 8/2013, changelist 178 ...
HLODs do not correctly work with Dynamic Material Instances
UE - World Creation - Worldbuilding Tools - HLOD - Jan 11, 2016A licensee has reported that when using Create Material Instance Dynamic and adjusting a material at run-time is not working with HLODs. It doesn't seem supported (yet) and unchecking the "merge m ...
Details Panel - ShowOnlyInnerProperties does not work in nested structs unless the outer struct also has the metadata
UE - Editor - Verse Class Editor - Nov 27, 2023The current implementation for inlining struct members is setup in a way where we start with the outermost struct and only recurse into any child structs if it contains the ShowOnlyInnerProperties m ...