Is the suggestion with the scalability settings not working?
Unfortunately not working 
I’ve always have set epic settings. Before 4.4 it was working good.
Do you get the same effect as in video?
v=E60ADXZ4qUE
@ Nadragul: In the video you can see the difference on your landscape 
I fixed on my map by increasing landscape thickness to 100 and resizing the map using resample and then resizing again with expand, fixed everything right up