Fixed #12660

core/src/mindustry/entities/comp/TargetDummyComp.java

@@ -22,4 +22,11 @@ abstract class TargetDummyComp implements Unitc, Healthc{
             td.dummyHit(amount);
         }
     }
+
+    @Override
+    @Replace
+    public boolean canLand(){
+        //dummies should always respect the boost config even when the landing area is obstructed (usually by other dummies)
+        return true;
+    }
 }

core/src/mindustry/entities/comp/UnitComp.java

@@ -174,7 +174,8 @@ abstract class UnitComp implements Healthc, Physicsc, Hitboxc, Statusc, Teamc, I
 
     /** @return whether there is solid, un-occupied ground under this unit. */
     public boolean canLand(){
-        return !onSolid() && Units.count(x, y, physicSize(), f -> f != self() && f.isGrounded()) == 0;
+        float psize = physicSize();
+        return !onSolid() && !Units.any(x - psize/2f, y - psize/2f, psize, psize, f -> f != self() && f.isGrounded());
     }
 
     public boolean inRange(Position other){