Experimental Tech Disclaimer
Virtual Heightfield Mesh (VHFM) is experimental engine tech in its current engine plugin state (Version 0.1 even in UE 5.3), errors can occur when using it under some circumstances.
Keep that in mind while using it. We have to wait for a more stable version of VHFM from Epic until 100% of issues can be completely ruled out.
Known Engine Problems and Solutions
Problem:
The Landscape has turned invisible (or partly invisible) after I deleted an object out of the world in Unreal Engine 5.
Solution:
This is a common problem with VHFM in the UE 5.0 and 5.1 version of the engine. To solve it in Unreal, if it happens, just reload you map or restart the Editor.
Problem:
The Landscape has turned invisible after I’ve moved or scaled the entire Landscape, Heightfield, or sculpted it by a lot.
Solution:
This is because, by moving or scaling the landscape or sculpting outside of the VHFM bounds, the VHFM bounds are no longer covering the entire landscape. To fix it, simply rerun the RVT+VHFMsetupWidget and go through the steps (just press the two buttons), it will automatically realign the bounds for you. More detailed directions on how to do that, can be found here.
Problem:
When using two or more Landscapes simultaneously in the same map, only one of the Landscapes has the heightfield on it, the rest turn invisible near the camera.
Solution:
We cannot use multiple Landscapes with RVT or VHF simultaneously on the same map, because of limitations. To use multiple landscapes in one world, use a different preset other than RVT or VHF.