MAP 3 has a a missing chunk in the bottom right of the map, can be seen with all zoom levels. (playing on v1.1)
I update the post for a workaround for this bug.
If you want to solve it on your side, you need to change the "list.txt" file located here: "SkateRide\assets\data\map2".
Open the "list.txt" file and and change "map23.png" to "zblank.png"
yep that worked cool!