Unreal Engine Issues
Unreal Engine Issues
Root motion "loop" not available to select in Blend Space
UE - Anim - Runtime - Apr 6, 2022When creating a blend space within UE5, root motion options are greyed out and can NOT be selected, no matter if the animation has EnableRootMotion checked or not. I also made sure to try an animat ...
Missing binding object for component track in level sequence
UE - Anim - Sequencer - Mar 13, 2025This issue occurs when clicking on the Rebind Possesable References action in a Level Sequence editor. The component reference appears missing and won't work anymore. It is worth noting that when ...
The FNetNameMapping::GetUniqueName function appends numerical values to the end of the previous name instead of replacing the previous name's numerical value
UE - Gameplay - Blueprint Compiler - Feb 23, 2018The GetUniqueName() function attempts to make sure that all node names are unique. For nodes that are used a large number of times, it adds a numerical value to the end of the name. Prior to 4.18, t ...
Shadows are cast by meshes that have "Self Shadow Only" enabled while "Ray Tracing" is enabled with DX12
UE - Graphics Features - Lumen - Nov 6, 2019Meshes that have "Self Shadow Only" enabled are still casting shadows if ray tracing is enabled with DX12. Found in 4.23.1 CL#9631420 Reproduced in 4.22.3 CL#7053642, 4.24 CL#10053396, 4.25 Main CL ...
Light Banding for Point Lights at long distances from the World Origin
UE - Graphics Features - Jan 4, 2017When using a point light far from the world origin the light will have banding. The shadow bias and filter sharpen can help but they are not as consistent as settings near the world origin. The only ...
[Mac][Metal] Black/NaN spots Visible in Templates With r.BasePassOutputsVelocity
UE - Platform - Apple - Apr 15, 2016Base-pass rendering on Mac Metal now generates transient black/Nan spots across the scene - this appears to be related to r.BasePassOutputsVelocity and is presumably the connected to the incorrect s ...
Disparity in Rotation tool
Tools - Aug 31, 2016There is disparity between the two different ways of editing rotation. When using the scrubber in the details panel each value scrubbed only affects that value and the values go from 0 to 360. When ...
Cannot Add Actor Blueprints to Object Library When Base Class is Set to Actor
Tools - Jan 25, 2016Setting the base class dropdown of an Object Library to Actor prevents you from being able to add any actors to the library. This occurs even when the Has Blueprint Classes bool is checked. Found ...
CA_VALID_POINTER and CA_CHECK_RETVAL static analysis annotations broken
UE - CoreTech - Oct 13, 2023We had some code using the CA_VALID_POINTER and CA_CHECK_RETVAL annotations which had been working fine up until the 5.3 engine release. In 5.3, we started getting the following compile errors in a ...
Imported FBX causes a crash
Tools - Apr 22, 2016Edit MattK: This seems like more of a cooking issue than an fbx issue. The crash is related to nav collision When adding a FBX import into your project, if you do not close the project out and ope ...