Tessellation won't work on landscape

So I’ve been trying to create a material with tessellation but something seem’s to be wrong.

In the preview mode the material looks fine and the stuff popups on sphere shape but if i change it to a flat shape it just messes up and when applied to a flat shape or landscape it is still the same but if i apply it to a sphere shape in-ue it works.

Material: Screenshot - 8456793a96783960b2856801526d84e0 - Gyazo Landscape: Screenshot - 88096cf121d3611192c49e5a55fbbf56 - Gyazo Shapes: Screenshot - dd037037fde6454ed50a72237accb5a8 - Gyazo

I’ve tried changing tessellation mode to both flat and pn triangle with crack free… enabled and adaptive tiling disabled. It would be real helpful if someone could point out the problem, thanks.

Edit: Increasing the size of texture makes it work but isnt there a way to make it work even with the texture’s original size?