Verdant and Snowy Peaks block drop maps have missing thumbnails
When choosing a map for block drop, we often find that the maps “Verdant” and “Snowy Peaks” have missing thumbnails compared to every other map.
You may need to reset your client’s image cache in order for the fixed images to show up.
On Windows, you can do this by navigating to the folder below, and deleting all the files: C:\Users\YOURNAMEHERE\AppData\Local\Packages\Microsoft.MinecraftUWP_8wekyb3d8bbwe\LocalCache\minecraftpe\ServerContent