diff --git a/tilesets/t_abstract.tres b/tilesets/t_abstract.tres
index 51ac7ec..fa4bac4 100644
--- a/tilesets/t_abstract.tres
+++ b/tilesets/t_abstract.tres
@@ -66,6 +66,7 @@ points = PoolVector2Array( 0, 0, 8, 0, 8, 8, 0, 8 )
 0/autotile/navpoly_map = [  ]
 0/autotile/priority_map = [  ]
 0/autotile/z_index_map = [  ]
+0/autotile/fallback_mode = 0
 0/occluder_offset = Vector2( 0, 0 )
 0/navigation_offset = Vector2( 0, 0 )
 0/shape_offset = Vector2( 0, 0 )
diff --git a/tilesets/t_abyss.tres b/tilesets/t_abyss.tres
index eabe7cb..76adf2b 100644
--- a/tilesets/t_abyss.tres
+++ b/tilesets/t_abyss.tres
@@ -82,6 +82,7 @@ points = PoolVector2Array( 8, 2, 0, 2, 0, 2, 8, 2 )
 0/autotile/navpoly_map = [  ]
 0/autotile/priority_map = [  ]
 0/autotile/z_index_map = [  ]
+0/autotile/fallback_mode = 0
 0/occluder_offset = Vector2( 0, 0 )
 0/navigation_offset = Vector2( 0, 0 )
 0/shape_offset = Vector2( 0, 0 )
@@ -202,6 +203,7 @@ points = PoolVector2Array( 8, 2, 0, 2, 0, 2, 8, 2 )
 1/autotile/navpoly_map = [  ]
 1/autotile/priority_map = [  ]
 1/autotile/z_index_map = [  ]
+1/autotile/fallback_mode = 0
 1/occluder_offset = Vector2( 0, 0 )
 1/navigation_offset = Vector2( 0, 0 )
 1/shape_offset = Vector2( 0, 0 )
diff --git a/tilesets/t_canopy.tres b/tilesets/t_canopy.tres
index 94fd97e..95814e5 100644
--- a/tilesets/t_canopy.tres
+++ b/tilesets/t_canopy.tres
@@ -181,6 +181,7 @@ points = PoolVector2Array( 8, 8, 0, 8, 0, 0, 8, 0 )
 2/autotile/navpoly_map = [  ]
 2/autotile/priority_map = [  ]
 2/autotile/z_index_map = [  ]
+2/autotile/fallback_mode = 0
 2/occluder_offset = Vector2( 0, 0 )
 2/navigation_offset = Vector2( 0, 0 )
 2/shape_offset = Vector2( 0, 0 )
@@ -295,6 +296,7 @@ points = PoolVector2Array( 8, 8, 0, 8, 0, 0, 8, 0 )
 3/autotile/navpoly_map = [  ]
 3/autotile/priority_map = [  ]
 3/autotile/z_index_map = [  ]
+3/autotile/fallback_mode = 0
 3/occluder_offset = Vector2( 0, 0 )
 3/navigation_offset = Vector2( 0, 0 )
 3/shape_offset = Vector2( 0, 0 )
diff --git a/tilesets/t_cave.tres b/tilesets/t_cave.tres
index f3eb607..978247f 100644
--- a/tilesets/t_cave.tres
+++ b/tilesets/t_cave.tres
@@ -152,6 +152,7 @@ points = PoolVector2Array( 8, 6, 0, 6, 0, 0, 8, 0 )
 1/autotile/navpoly_map = [  ]
 1/autotile/priority_map = [  ]
 1/autotile/z_index_map = [  ]
+1/autotile/fallback_mode = 0
 1/occluder_offset = Vector2( 0, 0 )
 1/navigation_offset = Vector2( 0, 0 )
 1/shape_offset = Vector2( 0, 0 )
@@ -272,6 +273,7 @@ points = PoolVector2Array( 8, 6, 0, 6, 0, 0, 8, 0 )
 2/autotile/navpoly_map = [  ]
 2/autotile/priority_map = [  ]
 2/autotile/z_index_map = [  ]
+2/autotile/fallback_mode = 0
 2/occluder_offset = Vector2( 0, 0 )
 2/navigation_offset = Vector2( 0, 0 )
 2/shape_offset = Vector2( 0, 0 )
diff --git a/tilesets/t_grass.tres b/tilesets/t_grass.tres
index d790a15..4f434a5 100644
--- a/tilesets/t_grass.tres
+++ b/tilesets/t_grass.tres
@@ -259,6 +259,7 @@ points = PoolVector2Array( 8, 8, 0, 8, 0, 0, 8, 0 )
 3/autotile/navpoly_map = [  ]
 3/autotile/priority_map = [  ]
 3/autotile/z_index_map = [  ]
+3/autotile/fallback_mode = 0
 3/occluder_offset = Vector2( 0, 0 )
 3/navigation_offset = Vector2( 0, 0 )
 3/shape_offset = Vector2( 0, 0 )
diff --git a/tilesets/t_horror.tres b/tilesets/t_horror.tres
index 093b489..cf67855 100644
--- a/tilesets/t_horror.tres
+++ b/tilesets/t_horror.tres
@@ -141,6 +141,7 @@ points = PoolVector2Array( 8, 8, 0, 8, 0, 0, 8, 0 )
 0/autotile/navpoly_map = [  ]
 0/autotile/priority_map = [  ]
 0/autotile/z_index_map = [  ]
+0/autotile/fallback_mode = 0
 0/occluder_offset = Vector2( 0, 0 )
 0/navigation_offset = Vector2( 0, 0 )
 0/shape_offset = Vector2( 0, 0 )
@@ -315,6 +316,7 @@ points = PoolVector2Array( 8, 8, 0, 8, 0, 0, 8, 0 )
 1/autotile/navpoly_map = [  ]
 1/autotile/priority_map = [  ]
 1/autotile/z_index_map = [  ]
+1/autotile/fallback_mode = 0
 1/occluder_offset = Vector2( 0, 0 )
 1/navigation_offset = Vector2( 0, 0 )
 1/shape_offset = Vector2( 0, 0 )
diff --git a/tilesets/t_laboratory.tres b/tilesets/t_laboratory.tres
index 0b052b3..1f4092e 100644
--- a/tilesets/t_laboratory.tres
+++ b/tilesets/t_laboratory.tres
@@ -132,6 +132,7 @@ points = PoolVector2Array( 8, 2, 0, 2, 0, 2, 8, 2 )
 0/autotile/navpoly_map = [  ]
 0/autotile/priority_map = [  ]
 0/autotile/z_index_map = [  ]
+0/autotile/fallback_mode = 0
 0/occluder_offset = Vector2( 0, 0 )
 0/navigation_offset = Vector2( 0, 0 )
 0/shape_offset = Vector2( 0, 0 )
@@ -180,6 +181,7 @@ points = PoolVector2Array( 8, 2, 0, 2, 0, 2, 8, 2 )
 1/autotile/navpoly_map = [  ]
 1/autotile/priority_map = [  ]
 1/autotile/z_index_map = [  ]
+1/autotile/fallback_mode = 0
 1/occluder_offset = Vector2( 0, 0 )
 1/navigation_offset = Vector2( 0, 0 )
 1/shape_offset = Vector2( 0, 0 )
@@ -300,6 +302,7 @@ points = PoolVector2Array( 8, 2, 0, 2, 0, 2, 8, 2 )
 2/autotile/navpoly_map = [  ]
 2/autotile/priority_map = [  ]
 2/autotile/z_index_map = [  ]
+2/autotile/fallback_mode = 0
 2/occluder_offset = Vector2( 0, 0 )
 2/navigation_offset = Vector2( 0, 0 )
 2/shape_offset = Vector2( 0, 0 )
@@ -420,6 +423,7 @@ points = PoolVector2Array( 8, 2, 0, 2, 0, 2, 8, 2 )
 3/autotile/navpoly_map = [  ]
 3/autotile/priority_map = [  ]
 3/autotile/z_index_map = [  ]
+3/autotile/fallback_mode = 0
 3/occluder_offset = Vector2( 0, 0 )
 3/navigation_offset = Vector2( 0, 0 )
 3/shape_offset = Vector2( 0, 0 )
diff --git a/tilesets/t_station.tres b/tilesets/t_station.tres
index ed8a090..8c786ba 100644
--- a/tilesets/t_station.tres
+++ b/tilesets/t_station.tres
@@ -169,6 +169,7 @@ points = PoolVector2Array( 0, 0, 8, 0, 8, 8, 0, 8 )
 1/autotile/navpoly_map = [  ]
 1/autotile/priority_map = [  ]
 1/autotile/z_index_map = [  ]
+1/autotile/fallback_mode = 0
 1/occluder_offset = Vector2( 0, 0 )
 1/navigation_offset = Vector2( 0, 0 )
 1/shape_offset = Vector2( 0, 0 )