Unreal Engine Issues
Unreal Engine Issues
Content Examples: Parallax Occlusion Map Feature no longer rendering self-shadows
UE - Graphics Features - Mar 2, 2020Parallax Occlusion Map Feature fails to render self-shadows as of the release of Unreal Engine v4.24.0 and has not been remedied since. The feature is perfectly functional in v4.23 [See attachments ...
PIE Dedicated Servers Have Lower Saturation Limits
UE - Networking - Jun 16, 2020UNetConnection::Tick() clamps the delta time used for the bandwidth limit to the desired tick rate (1 / DesiredTickRate). In PIE, this number is different than the net server max tick rate, so the b ...
Engine crashes when building GPU Lightmass in large scenes
UE - Graphics Features - May 12, 2022Engine crashes when building GPU lightmass in larger scenes. This does not occur on smaller maps like the Unreal Engine Templates. I was able to reproduce this issue in CitySamples SmallCity map. T ...
Crash occurs when after resuming from a Breaking Point that has been placed on an On List Item Object Set node
UE - Editor - UI Systems - Slate - Oct 13, 2022Tested in: //UE5/Release-5.1 CL22346211 Crashed with Assertion //UE5/Release-5.0 CL20979098 Crashed with Assertion Crash occurs when after resuming from a Breaking Point that has been placed on an ...
Texture Filter Nearest doesn't work in Packaged Shipping Builds
UE - Gameplay - Paper2D - Jun 28, 2023This is not a regression. Tested in //UE5/Release-5.1 CL23901901 Texture Filter Nearest isn't respected in Packaged Shipping Builds. When playing in editor, stand alone, or packaging in any other f ...
SplineMeshActors all share the first spline placed rather than their own spline when using the mobile renderer.
UE - Graphics Features - Nov 17, 2023SplineMeshActors all share the first spline placed rather than their own spline when using the mobile renderer. This was first reported in this UDN: https://udn.unrealengine.com/s/question/0D54z0000 ...
Adding a key frame to the curve editor in UMG adds multiple keyframes
UE - Editor - UI Systems - May 6, 2015When Right clicking and selecting add key frame to an animation on the curve editor in UMG there appears to be multiple keys being added to the timeline. ...
Sequencer - When a subsection has negative play rate, any nested sub-subsections fail to evaluate
UE - Anim - Sequencer - Jul 3, 2025Consider a sequence hierarchy with more than two layers. If the top-level sequence uses a negative timescale on a sub-sequence, the contents inside it animate as expected, but any nested sub-sequenc ...
Custom depth gets cleared for each eye in VR
UE - Platform - XR - Dec 19, 2020From licensee: "Expected behavior (as seen in UE 4.25...also confirmed in 4.24):"[Image Removed] "Actual behavior in UE 4.26:"[Image Removed] Report from a licensee: In VR when using custom dep ...
Using TInlineAllocator with a large number in TArray that is in an AActor class will cause child Blueprint class to call an assert while parent class will not
UE - Foundation - Core - Jul 22, 2016If a TArray has a TInlineAllocator with a large number and the class is used with a child Blueprint, the editor will throw an assert. If the base C++ Class is used instead of the Blueprint, the asse ...