diff --git a/core/assets/shaders/blockbuild.fragment b/core/assets/shaders/blockbuild.fragment
index e683997ba4..858018291f 100644
--- a/core/assets/shaders/blockbuild.fragment
+++ b/core/assets/shaders/blockbuild.fragment
@@ -22,7 +22,7 @@ bool id(vec2 coords, vec4 base){
 }
 
 bool cont(vec2 T, vec2 v){
-    float step = 1.0;
+    const float step = 3.0;
     vec4 base = texture2D(u_texture, T);
     return base.a > 0.1 &&
            		(id(T + vec2(0, step) * v, base) || id(T + vec2(0, -step) * v, base) ||
@@ -41,13 +41,8 @@ void main() {
 
 	vec2 center = ((u_uv + u_uv2)/2.0 - u_uv) /v;
 	float dst = (abs(center.x - coords.x) + abs(center.y - coords.y))/2.0;
-	float chance = 1.0;
 
-	if(u_progress > 0.8){
-	    chance = 1.0-(u_progress-0.8)*5.0;
-	}
-
-	if((mod(u_time / 1.5 + value, 20.0) < 5.0 && cont(t, v))){
+	if((mod(u_time / 1.5 + value, 20.0) < 15.0 && cont(t, v))){
         gl_FragColor = u_color;
     }else if(dst > (1.0-u_progress) * (center.x)){
         gl_FragColor = color;
diff --git a/core/src/io/anuke/mindustry/content/Blocks.java b/core/src/io/anuke/mindustry/content/Blocks.java
index 8a7dd65867..2e13592904 100644
--- a/core/src/io/anuke/mindustry/content/Blocks.java
+++ b/core/src/io/anuke/mindustry/content/Blocks.java
@@ -673,9 +673,10 @@ public class Blocks implements ContentList{
         }};
 
         junction = new Junction("junction"){{
-            requirements(Category.distribution, ItemStack.with(Items.copper, 2));
+            requirements(Category.distribution, ItemStack.with(Items.copper, 3));
             speed = 26;
             capacity = 32;
+            health = 25;
         }};
 
         itemBridge = new BufferedItemBridge("bridge-conveyor"){{
diff --git a/core/src/io/anuke/mindustry/ui/fragments/PlacementFragment.java b/core/src/io/anuke/mindustry/ui/fragments/PlacementFragment.java
index 9428fe510c..6e96893412 100644
--- a/core/src/io/anuke/mindustry/ui/fragments/PlacementFragment.java
+++ b/core/src/io/anuke/mindustry/ui/fragments/PlacementFragment.java
@@ -251,7 +251,7 @@ public class PlacementFragment extends Fragment{
                     //update category empty values
                     for(Category cat : Category.values()){
                         Array<Block> blocks = getByCategory(cat);
-                        categoryEmpty[cat.ordinal()] = returnArray.isEmpty() || !returnArray.first().unlocked();
+                        categoryEmpty[cat.ordinal()] = blocks.isEmpty() || !blocks.first().unlocked();
                     }
 
                     int f = 0;
diff --git a/server/src/io/anuke/mindustry/server/ServerControl.java b/server/src/io/anuke/mindustry/server/ServerControl.java
index a35e56cce4..55849d4765 100644
--- a/server/src/io/anuke/mindustry/server/ServerControl.java
+++ b/server/src/io/anuke/mindustry/server/ServerControl.java
@@ -244,10 +244,15 @@ public class ServerControl implements ApplicationListener{
         });
 
         handler.register("maps", "Display all available maps.", arg -> {
-            info("Maps:");
-            for(Map map : world.maps.all()){
-                info("  &ly{0}: &lb&fi{1} / {2}x{3}", map.name, map.custom ? "Custom" : "Default", map.meta.width, map.meta.height);
+            if(!world.maps.all().isEmpty()){
+                info("Maps:");
+                for(Map map : world.maps.all()){
+                    info("  &ly{0}: &lb&fi{1} / {2}x{3}", map.name, map.custom ? "Custom" : "Default", map.meta.width, map.meta.height);
+                }
+            }else{
+                info("No maps found.");
             }
+            info("&lyMap directory: &lb&fi{0}", customMapDirectory.file().getAbsoluteFile().toString());
         });
 
         handler.register("status", "Display server status.", arg -> {