Unreal Engine Issues
Unreal Engine Issues
ContentExamples: Volumes Example 1.9 There is an extra space between "Causing" and "Event"
Docs - Samples - Jan 19, 2017In Display 1.9, there is an extra space between Causing and Event ...
[5.8] Cherry-pick CL 55798320: re-precache PSOs in ULandscapeComponent and UGroomComponent OnRegister (fixes bPSOPrecacheCalled ensure on re-register)
UE - Rendering - RHI - Oct 21, 2026In 5.8, UPrimitiveComponent::OnUnregister resets FPSOPrecacheComponentData, which clears bPSOPrecacheCalled (regression from CL 48140040). ULandscapeComponent and UGroomComponent only call PrecacheP ...
Crash While Running Project With d3ddebug Enabled (fix provided)
UE - Graphics Features - Mar 6, 2017A licensee encountered a crash during InjectTranslucentLightArray: according to them they fixed the issue in ShadowProjectionCommon.usf: /** Cube map texture. */ TextureCube<float> ShadowDepthCub ...
Enabling Fixed Frame Rate doesn't Lock the Frame Rate
UE - Rendering - Architecture - RHI - Nov 19, 2019When a project is set to use a fixed frame rate via the Project Settings it is uncapped when played in editor. Found in 4.24 Preview 2 CL#10091930 Reproduced in 4.25 Main CL#10298106 ...
Using a fixed frame rate will cause you to leave the loop section of Montage.
UE - Runtime - Animation - Dec 10, 2021This problem only occurs when the fixed frame rate is 30 and the Sequence Lenngth of the loop animation is 1.66667. If turn off the fixed frame rate setting, it will behave as it should. ...
Renamed controls creating duplicate curves in sequencer that once fixed up cause selection issues.
UE - ACT Character - Control Rig - Mar 25, 2026When a control is renamed after it has already been animated in a sequence, the control curve name map needs to be fixed up. Once it is fixed, selecting the control in the world will not map the sel ...
Integrate VirtualBones crash fix into next release patch
OLD - Anim - Jun 7, 2017Athomas reached out to me with a crash he was having when trying his 'Automatic Sync Marker AnimModifier' on a Skeleton that had Virtual Bones. It was verified that this only happens when Virtual B ...
Z order in based on the position in the Hierarchy is reversed in 4.9
UE - Editor - UI Systems - Oct 13, 2015The Z order that is given to a widget based on it's position in the Hierarchy panel in 4.9 goes from bottom of the hierarchy to the top (The bottom widget is the front most widget) instead of the to ...
Fix BinkMediaTextureResource command list crash on UE 5.6
RAD - May 23, 2025Bink MediaTextureResource assets cause a graphics API crash, due to a missing UAV flag. The Licensee has proposed a fix to add the TexCreate_UAV flag. ...
Crash occurs when an element of a fixed-size FText array is edited in a Blueprint.
UE - Gameplay - Blueprint - Jan 23, 2017The Editor can crash if a fixed-size FText array is created. Attempting to edit one of the values of the array in a Blueprint will result in a crash. ...