diff --git a/cybersyn/changelog.txt b/cybersyn/changelog.txt
index b909d26..11e4a85 100644
--- a/cybersyn/changelog.txt
+++ b/cybersyn/changelog.txt
@@ -4,6 +4,7 @@ Date: 2023-4-30
   Bugfixes:
     - Fixed UPS spikes in Space Exploration related to expensive remote calls into their modding interface.
     - Fixed missing cybersyn manager translation key.
+    - Added a fix for a crash related to using the beta branch of cybersyn
 ---------------------------------------------------------------------------------------------------
 Version: 1.2.14
 Date: 2023-4-30
diff --git a/cybersyn/info.json b/cybersyn/info.json
index e1a036f..06ebe55 100644
--- a/cybersyn/info.json
+++ b/cybersyn/info.json
@@ -1,6 +1,6 @@
 {
     "name": "cybersyn",
-    "version": "1.2.14",
+    "version": "1.2.15",
     "title": "Project Cybersyn",
     "author": "Mami",
     "factorio_version": "1.1",
diff --git a/cybersyn/info.lua b/cybersyn/info.lua
index 90cefac..639a3a2 100644
--- a/cybersyn/info.lua
+++ b/cybersyn/info.lua
@@ -3,4 +3,4 @@
 --- It is used in migrations.lua to determine if any migrations need to be run for beta testers.
 --- It is expected these are only meaningful between releases during beta testing.
 --- It should be set to nil for any release version.
-return 2
+return nil
diff --git a/cybersyn/scripts/gui/main.lua b/cybersyn/scripts/gui/main.lua
index 277810c..7628c42 100644
--- a/cybersyn/scripts/gui/main.lua
+++ b/cybersyn/scripts/gui/main.lua
@@ -50,9 +50,9 @@ function manager_gui.on_lua_shortcut(e)
 	if e.prototype_name == "cybersyn-toggle-gui" or e.input_name == "cybersyn-toggle-gui" or e.element then
 		if e.element then
 			if e.element.name == "manager_window" then
-				manager.wrapper(e, manager.handle.manager_toggle)	
+				manager.wrapper(e, manager.handle.manager_toggle)
 			end
-		else			
+		else
 			manager.wrapper(e, manager.handle.manager_toggle)
 		end
 	end
@@ -147,6 +147,9 @@ end
 
 
 function manager_gui.on_migration()
+	for i, v in pairs(global.manager.players) do
+		manager_gui.reset_player(i, v)
+	end
 	init_items(global.manager)
 end
 
diff --git a/cybersyn/scripts/migrations.lua b/cybersyn/scripts/migrations.lua
index 94488ac..51d406a 100644
--- a/cybersyn/scripts/migrations.lua
+++ b/cybersyn/scripts/migrations.lua
@@ -296,28 +296,36 @@ local migrations_table = {
 			end
 		end
 	end,
-	["1.2.14"] = function()
-	---@type MapData
+	["1.2.15"] = function()
+		---@type MapData
 		local map_data = global
 
-		map_data.manager = {
-			players = {},
-		}
-		for i, v in pairs(game.players) do
-			manager_gui.on_player_created({player_index = i})
+		if not global.manager then
+			global.manager = {
+				players = {},
+			}
+			for i, v in pairs(game.players) do
+				manager_gui.on_player_created({player_index = i})
+			end
 		end
 
 		for _, e in pairs(map_data.refuelers) do
-			e.network_mask = e.network_flag
-			e.network_flag = nil
+			if e.network_flag then
+				e.network_mask = e.network_flag
+				e.network_flag = nil
+			end
 		end
 		for _, e in pairs(map_data.stations) do
-			e.network_mask = e.network_flag
-			e.network_flag = nil
+			if e.network_flag then
+				e.network_mask = e.network_flag
+				e.network_flag = nil
+			end
 		end
 		for _, e in pairs(map_data.trains) do
-			e.network_mask = e.network_flag
-			e.network_flag = nil
+			if e.network_flag then
+				e.network_mask = e.network_flag
+				e.network_flag = nil
+			end
 		end
 	end,
 }
@@ -330,10 +338,6 @@ function on_config_changed(data)
 
 	flib_migration.on_config_changed(data, migrations_table)
 
-	for i, v in pairs(global.manager.players) do
-		manager_gui.reset_player(i, v)
-	end
-
 	IS_SE_PRESENT = remote.interfaces["space-exploration"] ~= nil
 	if IS_SE_PRESENT and not global.se_tele_old_id then
 		global.se_tele_old_id = {}