Unreal Engine Issues
Unreal Engine Issues
"ERR: Transient text cannot be serialized" after converting to 4.8
UE - Foundation - Core - Jul 3, 2015"ERR: Transient text cannot be serialized" after converting to 4.8. Many users are seeing them in the logs. Example Project: [Link Removed] ...
Crash when enabling global logging in 5.4.2
UE - Foundation - Jul 3, 2024Packaged projects on 5.4.2 (DebugGame) crash immediately on startup when it is opened through the command line using the global logging very-verbose argument. ...
DDX and DDY no longer work properly close to the camera in 4.21 on Android in OpenGL ES 3.1
UE - Platform - Mobile - Mar 29, 2019DDX and DDY no longer work properly close to the camera in 4.21 on Android in OpenGL ES 3.1. Worked in 4.20, no longer works in 4.21 or 4.22. Originally reported as Oculus Quest specific, but repr ...
Sprite sheets cannot be reimported in 4.8 in a project that was converted from an older version
UE - Gameplay - Paper2D - Jun 11, 2015User bug report: Why do you guys remove the Json Importer from UE 4.8? All atlases from TexturePacker can not be imported anymore on our projects. Is there a way to activate it? or maybe is there a ...
The results of Roughness=1.0 from a constant and from a parameter are different on 4.20.
UE - Graphics Features - Sep 4, 2018The results of Roughness=1.0 from a constant and from a parameter are different on 4.20. The static bool switch of the following material always returns 1.0. But the results are different.[Link Rem ...
[5.4+] World Partition Landscape Spline Meshes Builder - Source landscape splines are not properly removed/hidden
UE - World Creation - Worldbuilding Tools - HLOD - May 30, 2025LandscapeSplineActors and LandscapeSplineMeshesActors are not behaving as expected in 5.4 or 5.5. Testing in 5.4 the issue mostly seems to stem from issues with the Target Landscape -> Landscape Ac ...
"Error Provision not found" even though the provision is present and valid in 4.13.1
UE - Platform - Mobile - Oct 31, 2016A few users are reporting on the Answer Hub and in the Forums that they are getting the following error in their output logs: "Error Provision not found" even though the provision is present and va ...
4.24 Instanced Stereo Distortion Error in ComputeBufferUVDistortion
UE - Graphics Features - Nov 13, 20194.24 moves distortion calculations to the file DistortionCommon.ush and its`ComputeBufferUVDistortion` function. The code in the INSTANCED_STEREO define no longer works as `Interpolants` isn't passe ...
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 ...
Updating project to 4.12 corrupts Additive AimOffset thumbnail, causing log spam
OLD - Anim - Jun 6, 2016Updating project to 4.12 corrupts Additive AimOffset thumbnail, causing log spamLogAnimation:Warning: Setting an additive animation (Owen_AimOffset) on an AnimSingleNodeInstance is not allowed. This ...