Unreal Engine Issues
Unreal Engine Issues
Outliner eye toggle fails to hide static meshes when Affect Indirect Lighting While Hidden is enabled
UE - Rendering - Architecture - Nov 5, 2025When a static mesh has the property Affect Indirect Lighting While Hidden enabled, toggling its visibility via the Outliner eye icon does not hide the mesh in the editor viewport. The actor remains ...
Fbx importer can import valid under 30Hz anim at 30Hz
Tools - Jul 17, 2017The samplerate of a track was compute with the following formula Equation 1: number of Key / animation Time This formula work only if we have animation keys that are time equidistant. example of ...
[CrashReport] Integer divide-by-zero | RHIGetRenderQueryResult() [d3d11query.cpp:59]
UE - Graphics Features - Aug 29, 2017This is a common and longstanding crash that has occurred since at least the 4.15 release and has affected more than 200 users. User Descriptionsafter opening a projectwas just trying to start a pr ...
Static lighting issues with foliage
UE - World Creation - Worldbuilding Tools - Foliage - May 28, 2016The user reports a scene with a reasonable number of foliage instances renders with black lighting: After updating to 4.11 (.1 or .2 doesn't matter) I have not been able to bake my lighting properl ...
User Defined Enum Display Names aren't deterministic for localization/cooking
UE - Editor - UI Systems - Localization - Feb 1, 2016UUserDefinedEnum contains an array of FTexts which are supposed to be used as localized display names, however these are populated from the underlying UEnum type using the meta-data on the object. T ...
Recast rcScopedDelete<T>::resizeGrow copies too many elements
UE - Runtime - Character - Nov 5, 2024Context The Recast module has a helper struct rcScopedDelete for allocating, resizing and automatically freeing the allocated memory when the struct goes out of scope. Its allocation functions can ...
Editing Blueprint default values will make the level it is contained in get marked as dirty
UE - Gameplay - Blueprint Editor - Mar 10, 2023When Blueprint default values are edited, those edits will also be propagated to any active instances in the level. Each edit event will mark the level as dirty. Similarly, in a World Partition map ...
Geometry collection - source geometry not updating and reset bug
UE - Runtime - Simulation - Aug 17, 2023This issue was reported by a customer trying to modify the static meshes of a GeometryCollection. After removing some meshes from the Geometry Source, he used the Reset button to apply the changes t ...
Local binary build of 4.22.1 fails when only Visual Studio 2019 is installed
UE - Foundation - Cpp Tools - Apr 30, 2019Attempting to create a local binary build of 4.22 using Visual Studio 2019 (with no other versions of Visual Studio installed) currently fails with several warnings and errors, including the followi ...
Revision Control > View Changes: Request for changes to Revert File and Unsaved options
UE - Editor - Sep 22, 20251. Objects in the Unsaved list cannot be discarded, only saved. The only options to discard changes are restarting UE or manually locating each resource and clicking Reload. This becomes extremely c ...