Bugfixes

core/src/io/anuke/mindustry/content/bullets/TurretBullets.java

@@ -73,7 +73,7 @@ public class TurretBullets extends BulletList implements ContentList{
                 super.hit(b);
                 tile = tile.target();
 
-                if(tile.getTeam() == b.getTeam() && !(tile.block() instanceof BuildBlock)){
+                if(tile != null && tile.getTeam() == b.getTeam() && !(tile.block() instanceof BuildBlock)){
                     Effects.effect(BlockFx.healBlockFull, Palette.heal, tile.drawx(), tile.drawy(), tile.block().size);
                     tile.entity.healBy(healPercent / 100f * tile.entity.maxHealth());
                 }

core/src/io/anuke/mindustry/input/MobileInput.java

@@ -598,6 +598,10 @@ public class MobileInput extends InputHandler implements GestureListener{
             showGuide("construction");
         }
 
+        if(recipe == null && mode == placing){
+            mode = none;
+        }
+
         //automatically switch to placing after a new recipe is selected
         if(lastRecipe != recipe && mode == breaking && recipe != null){
             mode = placing;

core/src/io/anuke/mindustry/ui/fragments/PlacementFragment.java

@@ -36,9 +36,11 @@ public class PlacementFragment extends Fragment{
     Tile hoverTile;
     Table blockTable, toggler, topTable;
     boolean shown = true;
+    boolean lastGround;
 
     public PlacementFragment(){
         Events.on(WorldLoadGraphicsEvent.class, event -> {
+            currentCategory = Category.turret;
             Group group = toggler.getParent();
             toggler.remove();
             build(group);
@@ -109,13 +111,14 @@ public class PlacementFragment extends Fragment{
                 frame.table("button-edge-2", top -> {
                     topTable = top;
                     top.add(new Table()).growX().update(topTable -> {
-                        if((tileDisplayBlock() == null && lastDisplay == getSelected()) ||
+                        if((tileDisplayBlock() == null && lastDisplay == getSelected() && !lastGround) ||
-                        (tileDisplayBlock() != null && lastDisplay == tileDisplayBlock())) return;
+                        (tileDisplayBlock() != null && lastDisplay == tileDisplayBlock() && lastGround)) return;
 
                         topTable.clear();
                         topTable.top().left().margin(5);
 
                         lastDisplay = getSelected();
+                        lastGround = tileDisplayBlock() != null;
 
                         if(lastDisplay != null){ //show selected recipe
                             topTable.table(header -> {