Unreal Engine Issues
Unreal Engine Issues
Cannot paste text into Text Box in HTML5 build
UE - Platform - Mobile - Sep 14, 2017With HTML 5 Packages you cannot use the windows clipboard to paste things into the text box. This issue does not occur with other builds of the project. This issue does not appear to be a regression ...
Widget components added to characters added in a C++ template will not allow packaged builds to open
UE - Gameplay - Blueprint - Oct 19, 2017When Widget components added to characters added in a C++ template When the build is packaged and you attempt to open it the window will not open, despite a process running in the background Versio ...
Inherited TMap value of type UObject* is not saved on blueprint compile
UE - Gameplay - Blueprint - Oct 20, 2017When a blueprint inherits a TMap variable with a UObject* as the value, compiling the blueprint causes anything set for the value to rest to "none" Workaround: Adding the TMap through the editor re ...
Object type variable isn't accepted by Construct Object node
UE - Gameplay - Blueprint - Aug 15, 2017REGRESSION: Technically a regression from 4.16 Object variables aren't accepted by Construct Object class, even if the value is set to an Object blueprint. The following error is generated:Cannot ...
No Dynamic Shadows on Translucent Materials in iOS Preview
UE - Platform - Mobile - Jul 23, 2018There are no dynamic shadows on translucent materials in the "iOS Preview" for the preview rendering level. Working as intended in 4.16 CL# 3561208, 4.17 CL# 3658906, and 4.18 CL# 3832480. Found i ...
Certain materials are overly bright with Ray Traced Global Illumination denoiser
UE - Graphics Features - Lumen - Mar 14, 2019Ray Traced Global Illumination is causing some materials to glow extremely bright Disabling r.raytracing.globalillumination.denoiser fixes the issue In 4.22 preview 5 binary (5365847) the result i ...
Arrays of Soft Object local variables are not captured for reference graph
UE - Gameplay - Blueprint - May 20, 2019This bug comes from https://udn.unrealengine.com/questions/492861/view.html and is a very similar problem to [Link Removed] The issue is that the code that harvests soft object references stored in ...
Time Synth fails to play 96KHz audio clips
UE - Audio - May 19, 2020TimeSynth 96KHz music clips only play for a split second and then stop. 48KHz files play correctly however 96KHz 16-bit and 24-bit files do not This was reported and tested in 4.25 (CL-13144385) an ...
Static lights become stationary after toggling visiblity of level in packaged build
UE - Rendering - Features - Jun 11, 2025In 5.5, there is a regression with baked lighting where static lights become stationary lights when a level is hidden and then made visible again. This happens in packaged builds and shows up as sta ...
PlayerCollision visualization incorrect on LandscapeSplineMesh when Nanite is enabled
UE - Rendering - Features - Nanite - Dec 3, 2025From licensee: I’ve found an issue with the visualization of PlayerCollisions when using LandscapeSplineMesh with a mesh that has Nanite enabled. The Chaos collisions shown in the Chaos Visual Debu ...