… so. On the import panel. Are you clicking the button and selecting the 64 images that belong to the appropriate layer?
because what you have says 2.
2 is most definitely senot 64, which is what world machine screen shot shows.
The tiles should be black/white PNGs that contain the layer info.
Usually for me, layer one is a whole white image. Layer 2 and all other layers are black. (Because i don’t use world machine, which maybe i should, ill grant you that).
Another tip. Close down the world composition mini map before import, it tends to have you run out of video memory when it is open (it did in .24 anyway).
Yet another tip. do not delete the landscape or the gizmo from the persistent. You can modify the values on the landscape and the changes propagate to the tiles when you load them/save them.