Unreal Engine Issues

Physics actor with physics toggled will fall through static meshes set to Movable

Physics actor with physics toggled will fall through static meshes set to Movable User Description: Basically, what this project does is enable simulate physics on the black cube in the middle, th ...

Particle disappears if it is using PSA_Velocity and setting custom time dilation 0

A licensee reported some of their particles disappear when setting the actor's custom time dilation 0. This seems to happen when a particle is using PSA_Velocity as Screen Alignment. This repros in ...

Setting AnimationMode to "UseAnimationAsset" inside Sequencer might not be set properly.

Adding a new key inside a LevelSequence that changes the AnimationMode of a SkeletalMesh to "Use Animation Asset" can bug out the AnimationMode constantly change between "UseCustomMode" and "UseAnim ...

EQS Overlap test no longer recognizes custom Collision Object Channel

Environment Queries Ignore tests for Custom Collision Object Overlaps. Note: The expected behavior seems to have worked in 4.21, After following the steps to reproduce, I can verify a successful de ...

Delta struct serialized fast arrays replicating new elements with no changelist

There is a scenario where delta struct serialized fast arrays can replicate changes that introduce additional elements to the array, but without changelists containing the new data. This needs furt ...

Certain UPROPERTY values are not updated during auto-recompile

Sometimes manual recompile is required to make a blueprint actually recompile data-only changes, but not always. If the last manual compile was with default values, then changes are not updated. If ...

Crash when entering Brush Editing mode with a Sequence spawnable Post process volume

Modifiers do not behave as expected when adding conflicting mappings of different priorities

Volumetric clouds jitter when in front of geometry

Potentially related to [Link Removed], but distinct. ...

Eye Shading Model renders Emissive unexpectedly when using a FloatRGBA scene format

This appears to be caused by the colour format. It only occurs when the scene format has an alpha channel. FloatRGB (format 3) doesn’t exhibit these issues. Unfortunately, format 4 is the default fo ...