Unreal Engine Issues
Unreal Engine Issues
Unnatural de-overlap occurs when moving inside a mesh-type collision located far from the origin
UE - Simulation - Physics - Jan 8, 2025The problem appears to occur when the distance from an edge is mixed with positive and negative values in VectorEPA function. The following workaround is suggested that uses absolute values of dista ...
Editor FPS has significant drop when moving a BSP brush in level with multiple BSPs
UE - AI - Navigation - Jan 8, 2025Editor performance plummets when moving BSP brushes in a level with several other BSP brushes present. Navmesh regeneration is the main cause as the full bounds for all BSP are used to determine whi ...
Rewind Debugger does not support visual tick marks for Visual Log logline events.
UE - Anim - Runtime - Jan 8, 2025When using UE_VLOG events in blueprint or in code, the rewind debugger does not show those events visually on the track or output those events to the details view. ...
Sequencer shot blend will have incorrect blend time if play rate of sequence is changed.
UE - Anim - Sequencer - Jan 7, 2025When there is a blended camera cut and the sequences playrate is changed, the camera blend time will not match the new rate and play incorrectly. ...
SetActorLabel() is slow on Landscapes
UE - Graphics Tools - Terrain - Landscape - Jan 7, 2025I've noticed calling SetActorLabel() on a Landscape will call PostEditPropertyChanged() which causes the Landscape Components to regenerate all collisions. As per the repro, this can take a long tim ...
Add support for Debug Persistent Foreground Line Batcher
UE - Anim - Rigging - Control Rig - Jan 7, 2025Foreground debug lines are cleared each frame and as a result, dissapear when PIE is paused (even if no persistence is supported, the lines sould be drawn if PIE is paused). We need support for pers ...
Collision profiles are reset when blueprint is loaded
UE - Gameplay - Jan 6, 2025In UE 5.5 (and earlier versions), FCollisionResponse::operator== has incorrect behavior where it will detect that two collision response containers are identical if they have the same number of entr ...
A non moving looping camera sequence flickers.
UE - Anim - Sequencer - Dec 20, 2024There is a small flicker on a looping single camera sequence where the camera doesn't move. Because the camera is static, you would not expect to see a flicker in lighting conditions. ...
BTDecorator_ForceSuccess does not work correctly on RunBehavior Node with Abort Decorators
UE - AI - BehaviorTree - Dec 20, 2024When using the ForceSuccess decorator on a Run Behavior task which also has an abort decorator, the Force Success node cannot make the task return succeeded when the abort is triggered. This means t ...
Translucency Volume are not correctly shadowed in 5.5 without Virtual Shadow Maps and are not light correctly by some lights
UE - Graphics Features - Dec 20, 2024TranslucencyVolume spheres are not correctly shadowed nor lit in Unreal 5.5 with VSMs disabled. Unreal 5.4 does correctly shade the sphere without VSMs. There appears to be differences in the outpu ...