Impassible Terrain Bug?

Hey, just downloaded the TOTPP latest update and I have been editing a few things in the rules.
Strange thing has happened;
the impassible terrain no longer is impassible to anyone, and even goodie huts spawn on it. this is true for the underworld and underwater world

Sea Floor, 1,2, 1,0,0, Pln, 0, 4, 2, yes, 2, 5, 1, Swa, no, ; Drt
Sea Bed, 1,2, 1,1,0, Grs, 0, 4, 1, Hil, 0, 5, 1, For, no, ; Pln
Fertile Sea Bed, 1,2, 2,1,0, yes, 2, 5, 1, For, 0, 8, 2, Tun, no, ; Grs
Coral Reef, 2,3, 3,1,0, Pln, 0, 5, 1, no, 0, 0, 0, Drt, no, ; For
Trench, 1,2, 0,0,0, no, 0, 0, 0, yes, 3, 7, 1, Drt, no, ; Hil
Mountains, 2,4, 0,1,0, no, 0, 0, 0, yes, 2, 7, 2, Jun, no, ; Mou
Anemone Forest, 3,6, 1,1,1, no, 0, 0, 0, no, 0, 0, 0, no, yes,; Tun - impassable
Ice Cap, 1,3, 0,2,0, no, 0, 0, 0, yes, 4, 7, 2, Drt, no, ; Gla
Sargasso Sea, 3,3, 2,1,1, yes, 2, 3, 1, no, 0, 0, 0, Pln, no, ; Swa
Smoker, 1,2, 0,3,0, Tun, 0,10, 1, yes, 4, 7, 3, Drt, no, ; Jun
Ocean Depths, 1,2, 1,0,2, no, 0, 0, 0, no, 0, 0, 0, no, no, ; Oce
Clams, 1,2, 2,2,1,
Decorated Kelp, 1,2, 2,2,2,
Halodule Clumps, 1,2, 2,1,1,
Sunken Sleigh, 2,3, 2,4,4,
Lava Vent, 1,2, 0,4,1,
Mineral Deposit, 2,4, 0,3,2,
Clowciraptor, 3,6, 0,0,0,
Ice Nodule, 1,3, 0,4,0,
Eels, 2,3, 3,1,3,
Sulfides, 1,2, 1,4,1,
Krill, 1,2, 5,0,3,
Oyster Bed, 1,2, 3,2,1,
Decorated Kelp, 1,2, 2,2,2,
Halodule Clumps, 1,2, 2,1,1,
Waterlogged Presents,2,3, 2,3,2,
Lava Vent, 1,2, 0,4,1,
Mineral Deposit, 2,6, 0,4,2,
Bones, 3,2, 1,2,2,
Ice Nodule, 1,3, 0,4,0,
Eels, 2,3, 3,1,3,
Sulfides, 1,2, 1,4,1,
Shipwreck, 1,2, 1,3,6,

@TERRAIN2
Bedrock, 3,2, 0,0,0, no, 0, 0, 0, Hil, 0, 3, 0, no, yes,; Drt - impassable
Fire Chamber, 1,3, 1,3,1, yes, 1,10, 1, yes, 1, 5, 1, no, no, ; Pln
Cave of Wonders,2,2, 9,9,9, no, 0, 0, 0, no, 0, 0, 0, no, no, ; Grs
Ice Chamber, 1,2, 2,1,0, yes, 1,10, 1, yes, 1, 5, 1, no, no, ; For
Tunnel, 1,2, 1,0,0, no, 0, 0, 0, no, 0, 0, 0, Mou, no, ; Hil
Blue Room, 1,2, 2,2,0, yes, 1,10, 1, yes, 1, 5, 1, no, no, ; Mou
z , 0,0, 0,0,0, no, 0, 0, 0, no, 0, 0, 0, no, no, ; Tun
Bedrock, 0,0, 0,0,0, no, 0, 0, 0, no, 0, 0, 0, no, no, ; Gla
Slime Cave, 2,3, 1,0,3, yes, 1,10, 0, no, 0, 0, 0, no, no, ; Swa
Bat Cavern, 1,2, 2,2,2, no, 0, 0, 0, yes, 2, 5, 0, no, no, ; Jun
Vaulted Sea, 1,2, 1,0,1, no, 0, 0, 0, no, 0, 0, 0, no, no, ; Oce
Granite Vein, 3,2, 0,0,0,
Fire Spout, 3,4, 1,6,1,
Gilt Sword, 2,2, 9,9,9,
Gems, 2,3, 2,1,5,
Diamonds, 1,2, 2,2,6,
Fungal Groves, 1,2, 3,2,4,
z , 0,0, 0,0,0,
z , 0,0, 0,0,0,
Green Slime, 3,3, 4,4,0,
Guano, 2,2, 3,3,5,
Cave Fish, 1,2, 2,6,6,
z Granite Vein, 3,2, 0,0,0,
z Fire Spout, 3,4, 1,4,1,
z Gilt Sword, 2,2, 9,9,9,
z Gems, 2,3, 2,1,5,
Inky Pool, 1,2, 2,6,2,
Limestone, 1,4, 2,5,1,
z , 0,0, 0,0,0,
z , 0,0, 0,0,0,
z Green Slime, 3,3, 4,4,0,
z Guano, 2,2, 3,3,5,
Plesiosaur, 1,2, 6,2,6,

As you can see the terrain that is still supposed to be impassible is still listed as such but still doesn't work. please help.

Edit: I have noticed a pattern.
all the different game types' impassible terrain work on the first map but none of the consecutive maps (terrain1 terrain2 and terrain3).

Edit 2: even when I change everything back to the way the rules were originally the impassible terrain for worlds 1 2 and 3 no longer work.
however world 0 still works. this is very confusing to me and I really need an expert opinion.

Edit3: is it possible that this caused the problem? "- Impassable terrain domain check: Makes air units respect impassable terrain too"

Edit4: problem solved when you turn off the option to have extra terrain types