Unreal Engine Issues
Unreal Engine Issues
Editor Crashing on Details Panel when Calling ForceRefresh
Tools - May 30, 2018Editing bool of the nested child CrashableDataAsset causes crash. Expected: CrashableDataAsset children are properly assigned. Result: Engine crash ...
CullDistanceVolumes don't update correctly
UE - Graphics Features - May 4, 2021Post process settings struct will not open/break to adjust individual settings
UE - Gameplay - Blueprint - Nov 12, 2015attempting to break the post process settings struct or split a post process settings struct pin causes pin to disappear, leaving a blank target node. ...
No warning is shown when a disabled mobile shader permutation is required for rendering
UE - Platform - Mobile - Mar 19, 2017Incorrect usage of FText in EnsureMsgf does not trigger a compilation error, leads to crash in shipping
UE - Foundation - Core - Mar 1, 2018Using incorrect formatting in FText does not cause compilation errors in EnsureMsgf as it does in other functions such as UE_LOG. This causes crashes to sneak through such as a crash on ensure when ...
Collision problem in nativized blueprint
UE - Simulation - Physics - Jan 29, 2019Issue reported by one of our licensee on the Japanese UDN https://udn.unrealengine.com/questions/480660/view.html ...
Instanced static meshes fire an erroneous performance assert about loose parameters.
UE - Graphics Features - Sep 4, 2019"This ensure is intended to catch regressions where rendering programmers add a loose parameter to LocalVertexFactory, breaking dynamic instancing on regular static meshes. InstancedStaticMeshes c ...
Spline Mesh Collision doesn't work in packaged game when spawning them at runtime
UE - Simulation - Physics - May 18, 2020Spline Mesh Components lose their collision in a packaged game when spawning them at runtime, or modifying them via 'Set Start and End' function at runtime. ...
Inconsistent media texture new style output state across the engine
UE - Media Framework - Jun 20, 2023A simple search for `NewStyleOutput = true` will reveal the many instances where this flag is already forced on, including media plates and media bundles. This however means that we have incompatib ...
Subobject ComponentClass overrides cause failing assertions due to UObject reconstruction on AsyncLoadingThread
UE - Framework - dSTM - Dec 19, 2025Context The blueprint editor allows you to override an actor component's class in derived blueprints (component details panel -> Component Class). [Image Removed] Problem When a blueprint and it ...