UE5.1 Landscape Physical Material Needs To Be Rebuilt

Development World Creation
, ,
26

This warning disappeared for me after I did the following:

  1. Landscape Material Instance > Physical Material slot, add any Physical Material.
  2. Save the Landscape Material Instance.

At this point the warning vanished. I found I could then remove the Physical Material that I had added and the warning didn’t come back. I don’t typically need Physical Materials in my Landscape, so I realise it may not work for those who do, but I hope this helps someone else regardless.