Unreal Engine Issues
Unreal Engine Issues
Spin box delta does not show update values correctly
UE - Editor - UI Systems - Dec 29, 2014When setting the Spin box delta to 1 and the slider exponent to 1 the value of the spine box should go up by 1s. However, the actual value is still retains decimal points and is rounded to show whol ...
Regression: Cannot import Landscape Layer Weightmap along with Heightmap because of broken resolution check for tiled images.
UE - Graphics Tools - Terrain - Jan 30, 2025When working in the "Landscape" editor mode, in both the "New" and "Import" tools, it is possible to import a single heightmap, as well as a weightmap for each layer. Each of these maps can come fro ...
Animation to Ragdoll: Character flips direction for 1 frame
Docs - Samples - Mar 8, 2016Character rotates 90 degrees abruptly for one frame so that it appears to "flip-flop" for that one frame between Death animation and conversion to ragdoll physics This is in relation to [Link Remov ...
Crash on BP recompile after deleting struct property with instanced object
UE - Gameplay - Blueprint Compiler - Jan 5, 2023A user has reported a crash that is reproducable in a clean project in UE 5.1.0 release. It involves a struct with an instanced object. The crash occurs after deleting a property of that struct type ...
Visible line down center of asset in ContentExamples Cloth 1.6
Docs - Samples - Jan 18, 2017This does not occur in 4.13.2 at CL 3172292 ...
Automotive Materials - ClearCoat Specular Artifact with Saturation ~1
UE - Graphics Features - Mar 8, 2023[Link Removed][Link Removed] ...
PIE registers 2 Default Brushes in the blank level
Tools - Jul 3, 2017PIE registers 2 Default Brushes in the blank level. It's expected behavior to have 1 Default Brush, which is the case in other play modes, but PIE registers 2. Licensee Description: This is an iss ...
KiteDemo: Bookmark 1 - bird visuals and audio missing
Docs - Samples - May 3, 2017While testing KiteDemo for 4.16 Sample Pass – //UE4/Release-4.16 CL 3420042 in Binary – I found that aside from the incredibly low FPS, some of the Bookmarked camera locations have issues. In the fi ...
Sphere Mask ArgInvHardness missing multiplication
UE - Rendering Architecture - Materials - Jun 27, 2025Hi Epic, In MaterialExpressions.cpp UMaterialExpressionSphereMask::Compile(), hardness is not calculated the same way in both <if> conditions. One is missing a multiplication by 0.01f. Specificall ...
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 ...