Fixed counter displaying as null / Revert #10090

core/src/mindustry/logic/LAssembler.java

@@ -21,7 +21,7 @@ public class LAssembler{
 
     public LAssembler(){
         //instruction counter
-        putVar("@counter");
+        putVar("@counter").isobj = false;
         //currently controlled unit
         putConst("@unit", null);
         //reference to self

core/src/mindustry/logic/LCanvas.java

@@ -257,7 +257,7 @@ public class LCanvas extends Table{
                 }
             }
 
-            if(parent != null) parent.invalidateHierarchy();//don't invalid self
+            invalidateHierarchy();
 
             if(parent != null && parent instanceof Table){
                 setCullingArea(parent.getCullingArea());