Bug in the new 4.19 Landscape LOD system? Update: UE-72934 still in 4.23 - occurs if camera FOV>90°

As it was not clear for me:

I had the same problem with flickering Landscape lods in 4.22.3. I just switched to 4.23.1 and the described bug is fixed in 4.23.1
As already described it was only visible if the FOV is bigger than 90.