Using 4.22 Preview 2. I have a tiled landscape. The landscape far shadows are only rendering when I select a landscape streaming proxy in the editor. If I select anything else, the far shadow disappears. If I play the level, the landscape still has no far shadow. Enabling far shadow in my directional light also makes the distance field soft shadows disappear.
If there is a new setting that I am missing, I would like to know about it. If not, I hope this gets fixed before release of 4.22.
*Edit: This appears to only be the case when tessellation is enabled. Also, any landscape components that are frustum culled no longer cast shadows.