Unreal Engine Issues

When the Groom asset LOD switches from Strands to cards, hair rendering is stuttered

It only happens when changing LOD from strands to cards.not in situations where changing LODs from cards to cards, cards to strands, strands to strands. The card meshes are not rendered immediately ...

422 YUV To RGB Conversion produces incorrect result

Screen jitters while blending constrained aspect ratio of camera

The screen jitters when animating the size of the filmback of a aspect ratio constrained Cine Camera. Following behavior was observed by the customer: MRQ: The expected behavior - bars smoothly in ...

Masked TwoSided material causing lumen direct lighting to leak through walls

It appears that LumenScene's Hardware Ray Tracing is causing light leaking into a sealed room (which should be perfectly black). This bug does not appear to happen on AMD GPUs. ...

Water not rendering in Movie Render Queue

It appears that MRQ does not actually add the pass that updates the Water Info Texture in the WaterZone actor. If the Skylight is set to "SLS Captured Scene" and does not capture every frame, then t ...

Depth of field and Refraction issue

Refraction does not adjust the scene depth texture, leading to a mismatch between Scene Color samples and Scene Depth samples. ...

"Reference space" when exporting LevelSequences with "Override Instance Data"

When exporting a Cinematic Camera as FBX and importing it back, all transforms and Camera view are shifted. This happens when in Level Sequence Actor has the property "Transform Origin Actor" set to ...

Slate Post Buffer does not work correctly when changing Default Back Buffer Pixel Format

Stale VSM pages after HLOD transition

Virtual Shadow Maps do not invalidate pages when HLODs replace meshes. This can lead to inconsistencies between the geometry and the shadows, which can cause artifacts as pages are invalidated. ...

Custom mode animation resets character pose on every change in the Sequencer

Skeletal Mesh Components that use Custom Animation Mode will have their animation rest to the base position when any change is made to the Level Sequence that the character is used in. The Licensee ...