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Splotchy shadows on basic walls HELP! UE5

Hey all, having an issue with basic lumen lighting. It seems there are these bumpy shadows on regular walls. Any ideas? Thanks.

This is a known issue for lumen, especially indoor lightning. You are getting patches, I also get fully jagged shadows.

Try to use baked lighting for indoors. For now, use lumen for outside scenes.

Hopefully, it will be fixed when UE5 comes out.

For interiors it can also depend on how you construct things, you need to split up the walls into separate pieces