Better JSON null validation / Disable mods on startup crash

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

@@ -106,11 +106,6 @@ public class ModsDialog extends BaseDialog{
             }
         });
 
-        shown(() -> Core.app.post(() -> {
-            Core.settings.getBoolOnce("modsalpha", () -> {
-                ui.showText("@mods", "@mods.alphainfo");
-            });
-        }));
     }
 
     void modError(Throwable error){

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

@@ -327,6 +327,10 @@ public class SettingsMenuDialog extends SettingsDialog{
             game.checkPref("buildautopause", false);
         }
 
+        if(!ios){
+            game.checkPref("modcrashdisable", true);
+        }
+
         if(steam){
             game.sliderPref("playerlimit", 16, 2, 32, i -> {
                 platform.updateLobby();