Unreal Engine Issues
Unreal Engine Issues
Text to Speech does not work in Play in Editor
UE - Audio - Aug 18, 2022This is not a regression as the TTS plugin isn't available in 4.27.2. Text to Speech does not work in Play in Editor, but does work in Stand Alone. A warning is thrown:LogSlateStyle: Warning: Unab ...
Static lights become stationary after toggling visiblity of level in packaged build
UE - Graphics 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 ...
Staging DLC is reportedly broken
UE - Foundation - Cpp Tools - Automation Tool - Dec 16, 2015According to a licensee, StageFiles() is called with ExcludeWildcard that contains a directory name ("Engine/*") and bRecursive=true when building DLC. This is not supported by Directory.GetFiles(). ...
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 ...
Creating and loading 1001+ instances of level crashes editor
UE - Editor - UI Systems - Localization - Aug 2, 2016Creating and loading 1001+ instances of level crashes editor. Frequency: 4/4 Crashreporter: [Link Removed] Regression (yes) issue (does not) occur in 4.11.2 Notes While not reproduced internall ...
Shader Model 5 and Tessellation causes unintended effects on Linux
UE - Platform - Linux - Jul 6, 2016Using Shader Model 5 and tessellation on Linux gives strange results that are not present when used on Windows ex: 1) When using Shader Model 5 on Linux, turning on Translucent blend mode and Tesse ...
App does not resume after locking and unlocking on iOS
Tools - Jun 21, 2016Locking and unlocking the device does not allow the app to resume where it was left off. The app is running in the background but when you double tap home button and select it, the app will restart ...
Error for having an extra semicolon before a UPROPERTY declaration is not thrown inside of a USTRUCT
UE - Foundation - Core - Oct 26, 2016Having an extra semicolon on the line before declaring a UPROPERTY will cause UHT to miss parsing the following UPROPERTY. This is expected, but an error is usually given when this is the case. This ...
Crash When Executing RestartLevel When GameInstance Contains a Reference to an Actor in a Streamed Level That is Loaded But Not Visible
UE - Gameplay - Nov 29, 2016The editor is crashing when attempting to use the RestartLevel command if the GameInstance contains a reference to an actor that is in a streaming level. The streaming level must be loaded, but not ...
Enum Element Names Reset on Project Upgrade
UE - Gameplay - Feb 22, 2017Upgrading a copy of a project from 4.14 to 4.15 appears to be resetting the names of enum elements on switch on enum nodes. Opening the enum, saving it, and then restarting the project seems to res ...