Bright lines when surfaces intersect

[RenoJ]

Hi,

I can't get rid of the white lines in a number of scenes where the walls and ceiling intersect.
It also happens as in the photo with a moulding that is placed on the ceiling.

-No rounded edges
-Have tried without reflection on both surfaces
-Have tried without glossiness on both surfaces

Any ideas would be greatly appreciated.

Thanks,

[maru]

Hi, maybe it's this?
https://coronarenderer.freshdesk.com/support/solutions/articles/5000516209

This might help too:
https://coronarenderer.freshdesk.com/support/solutions/articles/5000501983

[RenoJ]

Amazing, thank you.

Shell modifier worked.

[maru]

Cool!