diff --git a/src/Autoload/Tools.gd b/src/Autoload/Tools.gd
index 8efe91b73..b236f3d7a 100644
--- a/src/Autoload/Tools.gd
+++ b/src/Autoload/Tools.gd
@@ -397,8 +397,10 @@ func attempt_config_share(from_idx: int, config: Dictionary = {}) -> void:
 			target_slot.tool_node.has_method("set_config")
 			and target_slot.tool_node.has_method("update_config")
 		):
+			target_slot.tool_node.set("is_syncing", true)
 			target_slot.tool_node.set_config(config)
 			target_slot.tool_node.update_config()
+			target_slot.tool_node.set("is_syncing", false)
 
 
 func reset_options() -> void:
diff --git a/src/Tools/BaseTool.gd b/src/Tools/BaseTool.gd
index 471e71709..7d1d38fd3 100644
--- a/src/Tools/BaseTool.gd
+++ b/src/Tools/BaseTool.gd
@@ -2,6 +2,7 @@ class_name BaseTool
 extends VBoxContainer
 
 var is_moving := false
+var is_syncing := false
 var kname: String
 var tool_slot: Tools.Slot = null
 var cursor_text := ""
@@ -34,7 +35,8 @@ func _ready() -> void:
 func save_config() -> void:
 	var config := get_config()
 	Global.config_cache.set_value(tool_slot.kname, kname, config)
-	Tools.config_changed.emit(tool_slot.button, config)
+	if not is_syncing:  # If the tool isn't busy syncing with another tool.
+		Tools.config_changed.emit(tool_slot.button, config)
 
 
 func load_config() -> void: