diff --git a/core/src/mindustry/world/blocks/logic/TileableLogicDisplay.java b/core/src/mindustry/world/blocks/logic/TileableLogicDisplay.java
index f4b0883318..13b0196e9f 100644
--- a/core/src/mindustry/world/blocks/logic/TileableLogicDisplay.java
+++ b/core/src/mindustry/world/blocks/logic/TileableLogicDisplay.java
@@ -169,6 +169,7 @@ public class TileableLogicDisplay extends LogicDisplay{
 
         @Override
         public void draw(){
+            //TODO if this is called before draw() on the root display is called, it will wipe it
             if(needsUpdate){
                 needsUpdate = false;
                 linkDisplays(this);