Unreal Engine Issues
Unreal Engine Issues
Ensure when opening Camera Anim assets for the second time
Tools - Aug 21, 2016An occasional ensure is thrown when opening Camera Anim assets. Generally, the issue occurs when opening the asset for a second time, but the repro rate is low, around 1/5. ...
Assets Jitter When Selected In Editor
Tools - Mar 4, 2020When you are selecting an asset in the editor it jitters a little bit until unselected. Found in 4.25.0 Preview 1 CL#11723679 Reproduced in 4.26.0 Main CL#11724764 ...
Empty Mesh Sections with MergeActors Tool
UE - World Creation - Worldbuilding Tools - HLOD - Sep 27, 2019Map Check will output the following error, which makes no sense: SM_FourCubes_1 - 1 element(s) with zero triangles in static mesh 'SM_FourCubes' ...
Setting Lights, Static Meshes, and Actors to movable creates lighting error
UE - Graphics Features - Aug 15, 2017There is an error that is occurring when using movable lighting with objects and actors that are also set to movable. This issue does not occur with objects or lights that are NOT set to movable. V ...
Send "Enter Key" is not working with press and release key in Web Browser plugin
Tools - Mar 3, 2020When trying to send the Enter Key to Web Browser using the Press and Release function, it does not work. This function works with any other key that you try to send. A repro project is attached tha ...
SBasePoseViewport should use ExtendedBounds, not ImportedBounds
UE - Anim - Rigging - Jun 16, 2020In accordance with CL-9139422 of [Link Removed], the SkeletalMesh ImportedBounds does not have an Extend operation. However, SBasePoseViewport, the UI for retagettes, continues to use ImportedBounds ...
Cloud Presenter - Presentations with phasing may display all phases at once immediately after launch
TM - Tools - Oct 11, 2024Some Presentations containing Phasing will display all phases simultaneously in the Twinmotion Cloud after the Presentation is launched. Issue is consistently reproducible for affected Presentati ...
Missing info in GPU breadcrumbs and DRED logs
UE - Graphics Features - Apr 21, 2025Some breadcrumbs and D3D12 logs are missing data which should normally be filled in e.g. Breadcrumbs: > PostProcessMaterial %dx%d Material=%s [Active]. After investigating this, there seems to be a ...
FDeferredDecalProxy cannot be initialized to not fade even if FadeDuration is set to 0
UE - Rendering Architecture - May 16, 2024FDeferredDecalProxy always fade because InitializeFadingParameters is always called and leaves InvFadeDuration at 1.0 and the LifetimeAlpha calculation in FDeferredDecalPS::SetParameters gets a very ...
Light rendering becomes broken when at a distance of ~1000000 from origin
UE - Graphics Features - Oct 7, 2020Tested at X=20,000 with no issue Tested at X=500,000 with no issue Tested at X=1,000,000 issue occurs NOT A REGRESSION ...