diff --git a/core/src/mindustry/content/Blocks.java b/core/src/mindustry/content/Blocks.java
index 3b06323fb1..a5cdecfd72 100644
--- a/core/src/mindustry/content/Blocks.java
+++ b/core/src/mindustry/content/Blocks.java
@@ -82,7 +82,6 @@ public class Blocks{
 
     //defense - erekir
     buildTower,
-    //TODO name
     regenProjector, barrierProjector,
 
     //transport
diff --git a/core/src/mindustry/logic/LExecutor.java b/core/src/mindustry/logic/LExecutor.java
index 025ea5fc1c..9a4e1f4083 100644
--- a/core/src/mindustry/logic/LExecutor.java
+++ b/core/src/mindustry/logic/LExecutor.java
@@ -687,6 +687,7 @@ public class LExecutor{
         //radar instructions are special in that they cache their output and only change it at fixed intervals.
         //this prevents lag from spam of radar instructions
         public Healthc lastTarget;
+        public Object lastSourceBuild;
         public Interval timer = new Interval();
 
         static float bestValue = 0f;
@@ -720,7 +721,7 @@ public class LExecutor{
 
                 //timers update on a fixed 30 tick interval
                 //units update on a special timer per controller instance
-                if((base instanceof Building && timer.get(30f)) || (ai != null && ai.checkTargetTimer(this))){
+                if((base instanceof Building && (timer.get(30f) || lastSourceBuild != base)) || (ai != null && ai.checkTargetTimer(this))){
                     //if any of the targets involve enemies
                     boolean enemies = target1 == RadarTarget.enemy || target2 == RadarTarget.enemy || target3 == RadarTarget.enemy;
                     boolean allies = target1 == RadarTarget.ally || target2 == RadarTarget.ally || target3 == RadarTarget.ally;
@@ -744,9 +745,18 @@ public class LExecutor{
                         find(r, range, sortDir, r.team());
                     }
 
+                    if(ai != null){
+                        ai.execCache.put(this, best);
+                    }
+
+                    lastSourceBuild = base;
                     lastTarget = targeted = best;
                 }else{
-                    targeted = lastTarget;
+                    if(ai != null){
+                        targeted = (Healthc)ai.execCache.get(this);
+                    }else{
+                        targeted = lastTarget;
+                    }
                 }
 
                 exec.setobj(output, targeted);
diff --git a/core/src/mindustry/ui/dialogs/JoinDialog.java b/core/src/mindustry/ui/dialogs/JoinDialog.java
index 1bccdd6890..ed59a8b4e8 100644
--- a/core/src/mindustry/ui/dialogs/JoinDialog.java
+++ b/core/src/mindustry/ui/dialogs/JoinDialog.java
@@ -129,9 +129,9 @@ public class JoinDialog extends BaseDialog{
 
         for(Server server : servers){
             //why are java lambdas this bad
-            TextButton[] buttons = {null};
+            Button[] buttons = {null};
 
-            TextButton button = buttons[0] = remote.button("[accent]" + server.displayIP(), style, () -> {
+            Button button = buttons[0] = remote.button(b -> {}, style, () -> {
                 if(!buttons[0].childrenPressed()){
                     if(server.lastHost != null){
                         Events.fire(new ClientPreConnectEvent(server.lastHost));
@@ -142,13 +142,13 @@ public class JoinDialog extends BaseDialog{
                 }
             }).width(targetWidth()).pad(4f).get();
 
-            button.getLabel().setWrap(true);
+            Table inner = new Table(Tex.whiteui);
+            inner.setColor(Pal.gray);
 
-            Table inner = new Table();
             button.clearChildren();
             button.add(inner).growX();
 
-            inner.add(button.getLabel()).growX();
+            inner.add("[accent]" + server.displayIP()).left().padLeft(10f).wrap().style(Styles.outlineLabel).growX();
 
             inner.button(Icon.upOpen, Styles.emptyi, () -> {
                 moveRemote(server, -1);
@@ -214,11 +214,16 @@ public class JoinDialog extends BaseDialog{
 
     void refreshServer(Server server){
         server.content.clear();
-        server.content.label(() -> Core.bundle.get("server.refreshing") + Strings.animated(Time.time, 4, 11, "."));
+
+        server.content.background(Tex.whitePane).setColor(Pal.gray);
+
+        server.content.label(() -> Core.bundle.get("server.refreshing") + Strings.animated(Time.time, 4, 11, ".")).padBottom(4);
 
         net.pingHost(server.ip, server.port, host -> setupServer(server, host), e -> {
             server.content.clear();
-            server.content.add("@host.invalid").padBottom(4);
+
+            server.content.background(Tex.whitePane).setColor(Pal.gray);
+            server.content.add("@host.invalid");
         });
     }
 
@@ -248,21 +253,49 @@ public class JoinDialog extends BaseDialog{
             versionString = Core.bundle.format("server.version", host.version, host.versionType);
         }
 
-        content.table(t -> {
-            t.add("[lightgray]" + host.name + "   " + versionString).width(targetWidth() - 10f).left().get().setEllipsis(true);
-            t.row();
+        float twidth = targetWidth() - 40f;
+
+        content.background(null);
+
+        Color color = Pal.gray;
+
+        content.table(Tex.whiteui, t -> {
+            t.left();
+            t.setColor(color);
+
+            t.add(host.name + "   " + versionString).style(Styles.outlineLabel).padLeft(10f).width(twidth).left().ellipsis(true);
+        }).growX().height(36f).row();
+
+        content.table(Tex.whitePane, t -> {
+            t.setColor(color);
+            t.left();
+
             if(!host.description.isEmpty()){
-                t.add("[gray]" + host.description).width(targetWidth() - 10f).left().wrap();
+                //limit newlines.
+                int count = 0;
+                StringBuilder result = new StringBuilder(host.description.length());
+                for(int i = 0; i < host.description.length(); i++){
+                    char c = host.description.charAt(i);
+                    if(c == '\n'){
+                        count ++;
+                        if(count < 3) result.append(c);
+                    }else{
+                        result.append(c);
+                    }
+                }
+                t.add("[gray]" + result).width(twidth).left().wrap();
                 t.row();
             }
-            t.add("[lightgray]" + (Core.bundle.format("players" + (host.players == 1 && host.playerLimit <= 0 ? ".single" : ""), (host.players == 0 ? "[lightgray]" : "[accent]") + host.players + (host.playerLimit > 0 ? "[lightgray]/[accent]" + host.playerLimit : "")+ "[lightgray]"))).left();
-            t.row();
-            t.add("[lightgray]" + Core.bundle.format("save.map", host.mapname) + "[lightgray] / " + (host.modeName == null ? host.mode.toString() : host.modeName)).width(targetWidth() - 10f).left().get().setEllipsis(true);
+
+            t.add("[lightgray]" + (Core.bundle.format("players" + (host.players == 1 && host.playerLimit <= 0 ? ".single" : ""),
+                (host.players == 0 ? "[lightgray]" : "[accent]") + host.players + (host.playerLimit > 0 ? "[lightgray]/[accent]" + host.playerLimit : "")+ "[lightgray]"))).left().row();
+
+            t.add("[lightgray]" + Core.bundle.format("save.map", host.mapname) + "[lightgray] / " + (host.modeName == null ? host.mode.toString() : host.modeName)).width(twidth).left().ellipsis(true).row();
+
             if(host.ping > 0){
-                t.row();
-                t.add(Iconc.chartBar + " " + host.ping + "ms").color(Color.gray).left();
+                t.add(Iconc.chartBar + " " + host.ping + "ms").style(Styles.outlineLabel).color(Pal.gray).left();
             }
-        }).expand().left().bottom().padLeft(12f).padBottom(8);
+        }).growX().left().bottom();
     }
 
     void setup(){
@@ -407,7 +440,7 @@ public class JoinDialog extends BaseDialog{
                         }).width(targetWidth()).padBottom(-2).row();
                     }
 
-                    addGlobalHost(res, groupTable[0]);
+                    addCommunityHost(res, groupTable[0]);
 
                     groupTable[0].margin(5f);
                     groupTable[0].pack();
@@ -416,7 +449,7 @@ public class JoinDialog extends BaseDialog{
         }
     }
 
-    void addGlobalHost(Host host, Table container){
+    void addCommunityHost(Host host, Table container){
         global.background(null);
         float w = targetWidth();
 
@@ -433,7 +466,7 @@ public class JoinDialog extends BaseDialog{
             }else{
                 safeConnect(host.address, host.port, host.version);
             }
-        }).width(w).row();
+        }).width(w).padBottom(7).row();
     }
 
     void finishLocalHosts(){
@@ -521,7 +554,7 @@ public class JoinDialog extends BaseDialog{
     }
 
     float targetWidth(){
-        return Math.min(Core.graphics.getWidth() / Scl.scl() * 0.9f, 500f);
+        return Math.min(Core.graphics.getWidth() / Scl.scl() * 0.9f, 550f);
     }
 
     @SuppressWarnings("unchecked")
diff --git a/gradle.properties b/gradle.properties
index c9bf98a529..c29aaec588 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -24,4 +24,4 @@ android.useAndroidX=true
 #used for slow jitpack builds; TODO see if this actually works
 org.gradle.internal.http.socketTimeout=100000
 org.gradle.internal.http.connectionTimeout=100000
-archash=ff834fe5c9
+archash=b139bee16f