Fixed #4108

core/src/mindustry/content/UnitTypes.java

@@ -698,7 +698,6 @@ public class UnitTypes implements ContentList{
             legExtension = -15;
             legBaseOffset = 10f;
             landShake = 1f;
-            legSpeed = 0.1f;
             legLengthScl = 0.96f;
             rippleScale = 2f;
             legSpeed = 0.2f;

core/src/mindustry/ui/fragments/BlockInventoryFragment.java

@@ -121,6 +121,10 @@ public class BlockInventoryFragment extends Fragment{
                     }
                     if(dirty) rebuild(false);
                 }
+
+                if(table.getChildren().isEmpty()){
+                    hide();
+                }
             }
         });