Issue with Runtime Virtual Texture when using World Displacement

Hello, I’m trying to have a effect that move the landscape under my feet when moving.
I’m using a Runtime Virtual texture to do so, but if I try to sample it in the World Displacement output of my materials, the texture start to flicker with low res filter and give strange effect … If I sample it only the the base color input then it’s working fine.
Anyone has an idea of why this weird behavior ?

I’ve attach a video showing the bug at runtime.
Link Here

first the result with only the base color (RVT working fine),
then with the displacement (RVT flicker),
I though it could be due to the fact that the planes rendering in the RVT was clip by the terrain, but I move then up and display them, it doest seems to be that.

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