Unreal Engine Issues
Unreal Engine Issues
Transparency applied through widget animations do not work on 3D Widgets
UE - Editor - UI Systems - Sep 16, 2015If the user creates a widget with an animation that fades the widget out. This effect will not carry over into a 3D widget. The 3D widget goes directly from 1 to 0 or visa versa. ...
Adding a UMG widget to the viewport twice results in a crash.
UE - Editor - UI Systems - Sep 8, 2015Attempting to add the same widget to the viewport twice will result in an assertion and crash. ...
Assertion failed: InputOboeStream != nullptr when changing levels with Android voice enabled
UE - Audio - Jan 7, 2020Assertion failed: InputOboeStream != nullptr when changing levels with Android voice enabled User was able to workaround the issue by replacing Audio::FAudioCaptureAndroidStream::CloseStream() wi ...
Output warning log message for loading source texture of paper2D in Editor.
UE - Gameplay - Paper2D - Jul 30, 2020Outputs a warning log for loading source texture when Papaer2D is loaded in Editor. This may be due to a conflict post load of Paper2D and load source texture. The warning log is output only in ...
Blueprint functions with nested structs referencing UDataAssets generate errors if root not passed by value.
UE - Framework - Blueprint - Aug 17, 2022The source of the error appears to be a stray DefaultValue="None" that's contained within the inner "Test_Nested_TestContainer" split pin (copy/paste the node to notepad to see this). If you refresh ...
Crash in RHICommandContext& GetContext() in Test/Shipping builds when bUseChecksInShipping is true
UE - Rendering - Architecture - RHI - Nov 29, 2022RHIinit() calls GRHICommandList.GetImmediateCommandList().GetContext() to make sure that GDynamicRHI->Init() initialized the immediate command list (by calling FRHICommandListImmediate::InitializeIm ...
Server doesn't process anim notifies with montage tick type set to queued when bad network conditions occur
UE - Characters - Animation - May 3, 2023After some testing this issue looks to only occur with queued notifies and not with branching point notifies. UDN: https://udn.unrealengine.com/s/question/0D54z00009643x4CAA/server-doesnt-process-a ...
Double to float conversions of time in renderer causes precision issues
UE - Rendering - Architecture - Materials - Apr 8, 2026In game sessions when the value for world time becomes large enough we start running into floating point precision issues. These issues can easily be seen in materials which do periodic animation b ...
FVoiceSerializeHelper doesn't add references to AudioComponent instances
UE - Networking - Apr 28, 2015"FVoiceSerializeHelper doesn't add references to AudioComponent instances" ShooterGame crashes when following the repro steps provided by the licensee, listed below and on the UDN post. Crash image ...
Creating Widget at run time with an exposed variable causes Engine crash with Assertion
Tools - May 8, 2020If you are using the default values of the In Size the project will run fine, but changing the values will make the engine crash. This was reported and tested in 4.25 (CL-13144385) and reproduced i ...