Unreal Engine Issues
Unreal Engine Issues
Unable to uncap framerate in Vulkan
UE - Rendering - Architecture - RHI - Feb 28, 2019On Linux machines users are unable to uncap their framerate in the editor. This issue has been observed in multiple maps, including TM-URO and TM-AnimPhys, as well as Third Person Blueprint projects ...
Using Depth of Field when "r.PostProcessing.PropagateAlpha" is enabled causes halo effect on higher scalability modes and resolution
UE - Graphics Features - Dec 16, 2024There is a haloing effect when depth of field is used while post processing also has propagate alpha enabled at higher scalability levels. The effect becomes more obvious as the resolution of the vi ...
Promote to Variable no longer an option in Blueprint Function Library
UE - Gameplay - Blueprint - Nov 10, 2014In earlier versions of the Engine (reported from 4.2), in a Blueprint Function Library, from the New Function Node you could right click on "new parameter" to promote to variable. Also you could dra ...
Transform track can't be edited for Spawnable empty actor in Sequencer
UE - Anim - Sequencer - Oct 2, 2017Transform track for a spawnable Empty Actor always shows 0, 0, 0 and it can't be edited. I could repro this in 4.17.2 and 4.18 Preview 2. This does not happen in 4.15.3 and 4.16.3. So this could b ...
UnrealVS: Compile Single File no longer working after upgrading to 5.3
UE - Core - Cpp Tools - Oct 2, 2023After installing the UnrealVS version that arrived with 5.3. I can no longer use CompileSingleFile. It does however work on the Lyra project. One difference I notived, however, is that Lyra seems to ...
Unable to kill UnrealBuildTool, UBT no longer propegates sigterm
UE - Core - Cpp Tools - UnrealBuildTool - Aug 24, 2026When UBT is launched through one of the standard wrapper scripts, Ctrl-C no longer cancels the build. The `dotnet UnrealBuildTool.dll` process and its compile actions keep running to completion in t ...
Vector2D struct does not save default values in macro inputs
UE - Gameplay - Blueprint - Sep 1, 2016Vector2D struct does not save default values as a macro input Regression (no) issue (does) occur in 4.11.2 ...
Change in bitfield in a USTRUCT fails to replicate to clients
UE - Networking - Jun 23, 2015In the sample project provided on UDN, the server changes a bitfield value but the change fails to replicate to the client. ...
Changing Child Actor Class does not update Child Actor Template
UE - Gameplay - Blueprint Editor - Sep 28, 2017WHen the Child Actor Class value is changed in a blueprint, the Template name is not updated. Note: The Settings uner the Child Actor Template dropdown DO update when the class is changed. Workaro ...
Free physics constraints between two objects of differing size causes smaller object to jitter
UE - Runtime - Simulation - Sep 13, 2023A cube constrained to a physics actor will start to jitter uncontrollably when interacted with. (see attached media and repro steps for more details) Tested in the following //UE5-Release-5.3-CL ...