Unreal Engine Issues
Unreal Engine Issues
Gameplay Debugger doesn't work in ShooterGame when "Run Dedicated Server" is checked
UE - AI - May 10, 2019The Gameplay Debugger does not function in ShooterGame when "Run Dedicated Server" is checked. This issue only affects ShooterGame and works as expected in a Blank project or if "Run Dedicated Serve ...
Merging actors with two-sided materials produces incorrect results
UE - World Creation - Worldbuilding Tools - Merge Actor - Feb 24, 2020Merging two actors using a two-sided material produce incorrect results. Notes: Tested with "Allow two-sided material" on and off, the same result is produced. The same issue can be seen when ge ...
Color picker does not change the color of a Vector Parameter in a Material Instance until the mouse button is released
UE - Graphics Features - Mar 11, 2020This is a regression from 4.23.1 (CL-9631420). The color picker does not update in realtime anymore when holding down the left-mouse button. Only on mouse-release does it update. This was reported ...
Exporting a UE4 Animation into Maya results in wrong skin weight
UE - Editor - Content Pipeline - Datasmith - Importer - Apr 21, 2020UE4 Mannequin animations are not exporting/importing correctly into Maya. The right hand is bulkier and the left shoulder is dislocated. This was reported and tested in 4.23.1 (CL-9631420). this w ...
Normal of Skeletal Mesh is incorrect when Recompute Tangent is used when Skincache is enabled
UE - Graphics Features - Aug 12, 2020This issue occurs in Skeletal Mesh depending on the model when Skincache is enabled and affects the rendering. ...
incorrect virtual texture shader code(in FinalizeVirtualTextureFeedback) on Mobile forward platform
UE - Graphics Features - Mar 15, 2021in the function FinalizeVirtualTextureFeedback, the micro "USE_DBUFFER && MATERIALDECALRESPONSEMASK" returns true on mobile forward, while there is no DBUFFER on Mobile forward obviously. This takes ...
Key input by Sequencer is missing in FBX output of parent-child actors
UE - Anim - Sequencer - Nov 15, 2021This problem did not occur in 4.27.0. Animation is not output when outputting a hierarchical structure. Actor(A) ┗Actor(B) ┗Actor(C) This is how the attachments are registered, and the ke ...
Platform-specific defines not picked up by Intellisense
UE - Foundation - Cpp Tools - UnrealBuildTool - Aug 31, 2022With the way PLATFORM_XSX, PLATFORM_PS5 etc. are defined, it seems intellisense doesn't know about them, because the .vcxproj only references the Win64 version of Definitions.h, and they are defined ...
Precomputed AO Mask renders with value of zero after building lighting
UE - Rendering Architecture - Materials - Jan 13, 2023Regression: Tested in UE5/Release-5.0 at CL 20979098, this issue does not occur so it is a regression. This issue occurs in 5.1 for both normal light building and GPU Lightmass building. In 5.0 th ...
DeterminesOutputType and AutoCreateRefTerm are not compatible
UE - Gameplay - Blueprint Compiler - Jan 19, 2024The issue is due to the UK2Node_PureAssignmentStatement node that's created during node expansion when AutoCreateRefTerm is used on the target function. In the attached DOTBug image, you can see tha ...