Unreal Engine Issues
Unreal Engine Issues
[CrashReport] ULevel::GetWorldSettings - UMaterialFunctionThumbnailRenderer::Draw
Tools - Oct 30, 2017This is a common crash that has occurred since at least 4.16. The callstack is nearly identical to [Link Removed], which appears to be fixed in 4.18; and [Link Removed], which has not. The differen ...
Unknown force is applied to the cloth when changing the skeletal mesh LoD with cloth.
UE - Simulation - Physics - Character - Jul 11, 2019There are 3 issuesEach particles don't restore its previous position. Which is for calculating velocity by verlet iteration.The previous transform is cleared by current transform. It provides zero v ...
MovieRender Pipeline Skips Output Frames during GC
UE - Anim - Sequencer - Jun 8, 2020This is being seen in the wild... can release a temporary fix until 4.26 when we can change the headers and fix it for real. ...
Cannot add set/map variables to user defined structs
UE - Gameplay - Blueprint - Jan 11, 2017For 4.15, we should (ideally) support this, or only provide the array option in sturct (if the other path is too big a change for 4.15 post-branch). ...
Content Examples: Example 1.5 is stiff in Cloth Map
Docs - Samples - Apr 26, 2017Example 1.5 on Cloth Map seems very stiff in 4.16 compared to 4.15. Regression: Yes Works in 4.15 ...
Reintroduce UE4 Material Layer drag & drop behavior in UE5
UE - Rendering Architecture - Materials - Oct 19, 2023This behavior has changed from UE4 to UE5 due to a fix to an unrelated bug ([Link Removed]). Reintroduce the old behavior without causing a regression that reintroduces Ben's fixed bug. ...
Crash from Tmap removing a key then printing the remaining keys
UE - Gameplay - Blueprint - Apr 7, 2017Crash from Tmap removing a key then printing the remaining keys. This has occurred in the third person template, but no further testing has been done for other templates. Regression: TMaps did not ...
Animation sequence's ParticleNotify doesn't fire while playing it back in Sequencer editor
UE - Anim - Sequencer - Mar 21, 2018The ParticleNotify should always be triggered while playing in sequencer editor regardless whether the spawned particle is attached or not to it's bone/sockets This stopped working since 4.15 versi ...
Crash on exit with NULL FTextRenderComponentMIDCache
Suggested fix is to relocate the Super::PreExit() call to the end of UGameEngine::PreExit() so that level streaming can be safely flushed before the MID cache is cleaned up. ...
Impossible to save assets after change in redirectors
UE - Foundation - Core - UObject - Dec 13, 2018One of our licensees pointed out this problem. I've tried all the common redirector problems (write / read permission, multiple instances of the editor, renaming the assets, running the commandle ...