diff --git a/BaseClasses.py b/BaseClasses.py
index 7b07ded2..8a3da107 100644
--- a/BaseClasses.py
+++ b/BaseClasses.py
@@ -3309,8 +3309,8 @@ e_dmg = {"default": 0, "shuffled": 1, "random": 2}
 
 # byte 8: RRAA A??? (restrict boss mode, algorithm, ? = unused)
 rb_mode = {"none": 0, "mapcompass": 1, "dungeon": 2}
-# algorithm: todo with "biased shuffles"
-algo_mode = {"balanced": 0, "equitable": 1, "vanilla_fill": 2, "dungeon_only": 3, "district": 4}
+# algorithm:
+algo_mode = {"balanced": 0, "equitable": 1, "vanilla_fill": 2, "dungeon_only": 3, "district": 4, 'major_only': 5}
 
 # additions
 # psuedoboots does not effect code
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 78de0226..4acbd0e7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+### 0.2.7.1
+- Map checks in Mixed OWR now will show the proper tile images when screens are swapped (ie. Pyramid shows in the LW if that screen is swapped)
+- Added mystery seed number to spoiler log, so it is easier to match a spoiler log to a rom filename
+- Added proper branch-specific versioning (ie. Dev branch has '-u' suffixing the version number while Release/Main branch does not)
+
 ### 0.2.7.0
 - ~~Merged DR v1.0.0.3 - MANY changes, major things listed below~~
   - New Item Fills (Districts/Vanilla/Major Location/Dungeon)
diff --git a/EntranceShuffle.py b/EntranceShuffle.py
index 900d0764..ed6653b4 100644
--- a/EntranceShuffle.py
+++ b/EntranceShuffle.py
@@ -4,6 +4,7 @@ import RaceRandom as random
 from BaseClasses import CollectionState, RegionType
 from OverworldShuffle import build_accessible_region_list
 from OWEdges import OWTileRegions
+from Utils import stack_size3a
 
 entrance_pool = list()
 exit_pool = list()
@@ -1481,6 +1482,10 @@ def junk_fill_inaccessible(world, player):
 def connect_inaccessible_regions(world, lw_entrances, dw_entrances, caves, player, ignore_list=[]):
     invFlag = world.mode[player] == 'inverted'
 
+    if stack_size3a() > 500:
+        from DungeonGenerator import GenerationException
+        raise GenerationException(f'Infinite loop detected at \'connect_inaccessible_regions\'')
+
     random.shuffle(lw_entrances)
     random.shuffle(dw_entrances)
 
diff --git a/Main.py b/Main.py
index 5064acc2..0489b8bd 100644
--- a/Main.py
+++ b/Main.py
@@ -119,7 +119,7 @@ def main(args, seed=None, fish=None):
     logger.info(
       world.fish.translate("cli","cli","app.title") + "\n",
       ORVersion,
-      world.seed,
+      "%s (%s)" % (world.seed, str(args.outputname)) if str(args.outputname).startswith('M') else world.seed,
       Settings.make_code(world, 1) if world.players == 1 else ''
     )
 
diff --git a/OverworldShuffle.py b/OverworldShuffle.py
index 410ee7f8..bd855436 100644
--- a/OverworldShuffle.py
+++ b/OverworldShuffle.py
@@ -5,7 +5,9 @@ from BaseClasses import OWEdge, WorldType, RegionType, Direction, Terrain, PolSl
 from Regions import mark_dark_world_regions, mark_light_world_regions
 from OWEdges import OWTileRegions, OWTileGroups, OWEdgeGroups, OWExitTypes, OpenStd, parallel_links, IsParallel
 
-__version__ = '0.2.7.0-u'
+version_number = '0.2.7.1'
+version_branch = '-u'
+__version__ = '%s%s' % (version_number, version_branch)
 
 def link_overworld(world, player):
     # setup mandatory connections
diff --git a/Rom.py b/Rom.py
index 7c4b6041..d2bd5930 100644
--- a/Rom.py
+++ b/Rom.py
@@ -33,7 +33,7 @@ from source.classes.SFX import randomize_sfx
 
 
 JAP10HASH = '03a63945398191337e896e5771f77173'
-RANDOMIZERBASEHASH = '786c28c4735da56f0dbca879d02b22f6'
+RANDOMIZERBASEHASH = '4a1dfc4fa793b8659a95d579f6a5a925'
 
 
 class JsonRom(object):
diff --git a/asm/owrando.asm b/asm/owrando.asm
index c1415483..717890bd 100644
--- a/asm/owrando.asm
+++ b/asm/owrando.asm
@@ -56,6 +56,20 @@ jsl.l OWLightWorldOrCrossed
 org $0aba6c  ; < ? - Bank0a.asm:474 ()
 jsl.l OWMapWorldCheck16 : nop
 
+; Mixed Overworld Map
+org $0ABA99
+WorldMap_LoadDarkWorldMap:
+LDA.b $10 : CMP.b #$14 ; attract module
+BEQ .vanilla_light
+    LDA.l OWMode+1 : AND.b #$04 : BNE .mixed
+        LDA.b $8A : AND.b #$40
+        BEQ .vanilla_light
+    .mixed
+    PHB : PHK : PLB
+        JSL LoadMapDarkOrMixed
+    PLB
+.vanilla_light ; $0ABAB5
+
 ;(replacing -> LDA $8A : AND.b #$40)
 org $00d8c4  ; < ? - Bank00.asm:4068 ()
 jsl.l OWWorldCheck
@@ -81,8 +95,6 @@ org $07aa34  ; < ? - Bank07.asm:6718 ()
 jsl.l OWWorldCheck
 org $08d408  ; < ? - ancilla_morph_poof.asm:48 ()
 jsl.l OWWorldCheck
-org $0aba99  ; < ? - Bank0a.asm:515 ()
-jsl.l OWWorldCheck
 org $0bfeab  ; < ? - Bank0b.asm:36 ()
 jsl.l OWWorldCheck16 : nop
 org $0cffb6  ; < ? - ?.asm ? ()
@@ -241,6 +253,60 @@ OWOldManSpeed:
     rtl
 }
 
+LoadMapDarkOrMixed:
+{
+    CMP.b #$04 : REP #$30 : BEQ .mixed
+        LDX.w #$03FE ; draw vanilla Dark World (what we wrote over)
+        .copy_next
+            LDA.w $D739,X : STA.w $1000,X ; DB is $0A
+            DEX : DEX : BPL .copy_next
+        BRL .end
+    .mixed
+        LDX.b $8A
+        LDA.l OWTileWorldAssoc,X
+        STA.b $00
+        LDY.w #$139C
+        LDX.w #$003F
+        .next_screen
+            PHX
+            LDA.l OWTileWorldAssoc,X
+            EOR.b $00
+            AND.w #$0040
+            BEQ .light
+                TYX : BRA .copy_screen
+            .light
+                TXA : AND.w #$0024 : LSR : TAX
+                TYA : SEC : SBC.l LWQuadrantOffsets,X
+                TYX : TAY
+            .copy_screen ; more efficient to have X on the right side
+            LDA.w $C739+$00,Y : STA.b $00,X
+            LDA.w $C739+$02,Y : STA.b $02,X
+            LDA.w $C739+$20,Y : STA.b $20,X
+            LDA.w $C739+$22,Y : STA.b $22,X
+            LDA.w $C739+$40,Y : STA.b $40,X
+            LDA.w $C739+$42,Y : STA.b $42,X
+            LDA.w $C739+$60,Y : STA.b $60,X
+            LDA.w $C739+$62,Y : STA.b $62,X
+            TXY : PLX
+            DEY : DEY : DEY : DEY ; move one screen left
+            TXA : AND.w #$0007 : BNE .same_row
+                TYA : SEC : SBC.w #$0060 : TAY ; move one screen row up
+            .same_row
+            DEX
+        BPL .next_screen
+    .end
+    SEP #$30
+    LDA.b #$15 : STA.b $17 ; what we wrote over
+    RTL
+
+    LWQuadrantOffsets:
+    dw $1000-$0210 ; top left
+    dw $0C00-$01F0 ; top right
+    dw 0,0,0,0,0,0
+    dw $0800+$01F0 ; bottom left
+    dw $0400+$0210 ; bottom 
+}
+
 org $aa9000
 OWEdgeTransition:
 {
diff --git a/data/base2current.bps b/data/base2current.bps
index 533f39c2..277b30a0 100644
Binary files a/data/base2current.bps and b/data/base2current.bps differ