Unreal Engine Issues

Inconsistency between viewport and exported renders using Lumen and manual exposure

Reported in SF [Link Removed] Exported renders with Lumen can appear overexposed compared to the viewport renders, even when disabling auto-exposure and manually setting the exposure values. This ...

The reverse side of two-sided clear coat materials are not properly lit

Reported in SF [Link Removed] Materials with the Clear coat property enabled and two-sided property enabled will not react properly to lighting on the “reverse” face of any geometry they are applie ...

Lumen lighting in Presentations may appear darker than in Viewport

Reported in SF [Link Removed] In some scenes with Lumen enabled, interior scene lighting without direct lighting can appear drastically darker in Cloud Presentations than they do in the editor view ...

Videos not displaying on projector light

Reported in SF [Link Removed] When inserting a video into the projector light, the projector light no longer appears to work. The reporting user is on a Mac machine (M4). I was not able to reprodu ...

Visual discrepancy between lighting in Cloud Presenter and editor viewport

Reported in SF [Link Removed] In this user’s scene, the lighting in the Cloud Presenter does not match the lighting in the editor viewport. The Cloud scene is notably darker than the editor. The s ...

Can not paint vegetation with brush diameter of 1m or less

Video material broken on Mac M3+ (sm6)

On Mac devices, the video material in the viewport will display incorrectly, appearing stretched significantly. This only seems to affect the viewport and not rendered exports. ...

Rendered panoramas using Lumen may be overexposed

Reported in SF [Link Removed] Lumen Panorama renders in 2025.2 may appear overexposed compared to the viewport, or when comparing the same render produced in 2025.1.1 This only appears to occur wi ...

3D Grass may not appear in Path Tracer renders

Reported in SF [Link Removed] Path Tracer renders of images with 3D grass may not display 3D grass in the foreground of an image. The 3D grass material will not appear or may appear to cut off at s ...

360 videos with precipitation will get darker at times

Reported in SF [Link Removed] When exporting 360 videos with precipitation, there may be a noticeable darkening effect in the exported render that fades in and out. This effect is not present in th ...