Fixed #2544

core/src/mindustry/ui/dialogs/PausedDialog.java

@@ -88,7 +88,7 @@ public class PausedDialog extends BaseDialog{
                 cont.buttonRow("@launchcore", Icon.up, () -> {
                     hide();
                     ui.planet.show(state.getSector(), player.team().core());
-                });
+                }).disabled(b -> player.team().core() == null);
 
                 cont.row();
 

core/src/mindustry/ui/dialogs/PlanetDialog.java

@@ -94,6 +94,8 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
     }
 
     public void show(Sector sector, CoreBuild launcher){
+        if(launcher == null) return;
+
         this.launcher = launcher;
         selected = null;
         hovered = null;