Unreal Engine Issues
Unreal Engine Issues
Animation viewports can cause debug print messages to be purged
UE - Anim - Rigging - Control Rig - Jan 11, 2024A change was made a while back so that control rig debug print messages would be displayed in the animation editor preview windows. This is done via calling UEngine::DrawOnscreenDebugMessages from ...
Recentering on Meta Quest doesn't work
UE - Platform - XR - Jan 10, 2024This is a serious issue as it's causing applications to fail certification on the Meta Quest store ...
Chaos Vehicle does not make them CCD
UE - Simulation - Physics - Jan 10, 2024AWheeledVehiclePawn class tries to use CCD in the constructor, but Mesh->BodyInstance.bUseCCD = true this code does not work to activate CCD because Physics Assets could not be available at this ...
Regression: FGameplayTag and FGameplayTagContainer pin value modification is not undo/redoable
For nodes with an FGameplayTag or FGameplayTagContainer pin, when changing the tag value (Pin->DefaultValue) and triggering Undo/Redo, the pin modification is not undone. Rather, it undoes the previ ...
Arithmetic assignment operators (e.g. +=, *=) in Niagara inputs are applied twice .
UE - Niagara - Jan 9, 2024Arithmetic assignment operators seem to be applied twice when committed in the Niagara stack. This occurs when entering *= 2.0 for example into a float input. This may be the result of the SNiagar ...
Gameplay Effects can hold stale references to GameplayTags when switching Gameplay Effect Component type
UE - Gameplay - Gameplay Ability System - Jan 9, 2024Gameplay Effects can hold stale references to Gameplay Tags when the adding component is switched for a different type. The tags are serialised, and their presence can be confirmed with Reference Vi ...
Some debug modes do not work in PIE
UE - Platform - Mobile - Jan 9, 2024It looks like the output of the debug pass is ignored, and the final output from the last frame before the pass was enabled is displayed instead. If the pass is modified to return a different textu ...
Blueprint editor can crash on removing one of a Sequence node's exec pins
UE - Gameplay - Blueprint Editor - Dec 22, 2023User reported that upon removing a pin from a Sequence node the editor crashed. This only happened once, so may be a multithreading race condition or there may be additional unknown factors. The cra ...
Startup Movies in Lyra Flicker and trigger ensure: "Only one system can use the SlateThread at the same time. GetMoviePlayer is not compatible with PreLoadScreen."
Media Framework - Dec 20, 2023When adding startup movies to Lyra, the movie playback flickers and an ensure conditions fails with the message: Ensure condition failed: bSuccess [File:D:\build\++UE5\Sync\Engine\Source\Runtime\M ...
Additive Animation does not work as intended when Ref Frame Index is more than zero
UE - Anim - Runtime - Dec 19, 2023In some conditions, additive animation shows different/wrong behavior on Standalone Game and packaged game, from the other PIE. Watch the attached video. [Link Removed] The key points to reproduce ...