Unreal Engine Issues
Unreal Engine Issues
Controller Assignments appear incorrect for UI when "Skip Assigning Gamepad to Player 1" is set to true
UE - Editor - UI Systems - Jul 16, 2019When using a controller to navigate/ interaction with UI it appears that the "Skip Assigning Gamepad to Player 1" option is not taken into account when assigning input for UI. ...
LODs with screen size 0 in legacy assets are incorrectly converted to 1 on load
UE - Graphics Features - Sep 11, 2025When loading a mesh asset (static or skeletal) created in an old version of Unreal (e.g. 4.10), any LOD whose LOD screen size was originally set to 0, is converted to 1. This causes LODs that would ...
Texture Sample 2D Parameter not Working with WPO on Mobile Quality ES3.1
UE - Platform - Mobile - Jun 30, 2017WPO does not accept TextureParameter2D nodes when deployed to High End Mobile. The interesting thing is that all other inputs accept Param2D, so it is not entirely clear why WPO is not working. If ...
iOS ReplayKit isn't working in UE5.1+
UE - Platform - Apple - Apr 21, 2023In 4.27 & 5.0 when you press the in-app screen recorder button it would pop-up a msg about the user giving permission to allow the screen recording and then would start the recorder and save the mov ...
Fix rarely leaking Particle System Components
UE - Graphics Features - Jul 22, 2015User has found an issue in which Anim Notifies, spawning particle system components that cannot ever render will leak the particle system component. The user has a working fix but it's likely not i ...
"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 ...
Text overflows on Material_Properties sample 1.6
Docs - Samples - Aug 13, 2016In ContentExamples on sample 1.6 of the Material_Properties map, the text overflows the area given for it. ...
FName no longer equals FName_None when constructed with a trailing underscore and digits in range of 1-9
UE - CoreTech - Apr 15, 2025When an FName is created with a trailing underscore and any number of digits in the range of 1-9 the trailing digits are used as the internal number value for the FName lookup. This results in the F ...
Merging Splines causes Engine to Crash in 5.1
UE - World Creation - Worldbuilding Tools - Merge Actor - Dec 15, 2022Attempting to merge two spline actors causes the Engine to crash. This issue occurs with the Steps to Reproduce regardless if there are more branches added to the tree branch spline/enabled, and reg ...
Android movie player doesn't work with ES 3.1
UE - Platform - Mobile - Jul 27, 2017Niether movie playback Startup Movies Play on ES3.1 ...