UE 5.7 Preview - Autolandscape Landscape with Megascans Tropical_Jungle_Pack

Development World Creation
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Hello!

I am working on a landscape that makes use of the Unreality Bites UBLandscapeAuto material. When adding meshes to the LG_MidLow grass type from the Megascans Tropical_Jungle_Pack, e.g. SM_Tree_Tropic_01, it displays fine. However, as soon as I change it to Nanite, every instance on the landscape slowly floats up into the air for a distance, then floats back down below the landscape surface for a distance, then back up, back etc in a never-ending loop. I tried SM_Plant02 from the same pack and they all just vanished from the landscape altogether.

So far, it seems to be just this particular package. Anyone else having issues with Megascans Tropical_Jungle_Pack meshes that have Nanite enabled?

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UPDATE:

I updated my PC from Windows 11 23H2 to 25H2. Updated my Nvidia RTX3060 driver to the GeForce game ready Driver v581.57 released on 10/14.

The problem has not gone away but it’s been modified. Instead of the trees rising significantly up in the air then significantly down under the landscape, they are now just slowly kind of bobbing up and down:

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Based on the motion, does anyone think that there might be a an issue with the wind in the Z axis? I haven’t set up wind for anything before so I don’t know how it’s done.