(UE5) If a Skylight is placed inside a BP the scene leaves trails during motion, same skylight outside BP works as normal.

William K
Sat, 21 Feb 2026 23:40:00 +0000
Feedback & Requests

This seems to be a strange one, whenever i place a Skylight in a simple Blueprint actor with the aim of controlling its settings later, and I place that BP in my scene (try any scene even a new basic one), any mesh with animation or slightly fast or moderately fast movement leaves behind visible trails or swimming pixels. soonest the skylight is placed outside in the scene without the BP, the visual issues go away.

Its as if the skylight is messing around Lumen or some other underlying settings that i can’t pinpoint.

I am wondering if anyone has come across this issue before?

|In order for the issue to be more aparent try a single skylight with no other lights in the scene and keep the exposure low on the darker side and turn off auto-exposure.

Thanks.

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