update

src/components/ActionPanel.svelte

@@ -238,6 +238,17 @@
     <p class="secondary">Sending this PC's changes to {site} and taking in the other operators' work.</p>
   {:else if action === "stack"}
     <StackList stack={launcher.stack} phase={s?.phase ?? "launching"} />
+    {#if s?.map_from_site === false}
+      <!-- The map is this PC's own. Said plainly, because it looks like nothing is
+           wrong: tiles still draw, they are simply the ones this PC downloaded. -->
+      <div class="notice" role="status">
+        <Icon name="alert" size={14} />
+        <p class="selectable">
+          {site}'s map service is unreachable: drawing from this PC's own tiles.
+          {#if s?.map_problem}<span class="mono dim"> ({s.map_problem})</span>{/if}
+        </p>
+      </div>
+    {/if}
     <button class="btn btn-danger wide" disabled={launcher.stopping || busy !== null} onclick={() => launcher.stop()}>
       <Icon name="stop" size={12} />
       {launcher.stopping ? "Stopping…" : s?.phase === "running" ? "Stop ODIAN" : "Stop"}
@@ -509,6 +520,10 @@
     color: var(--danger);
   }
   .error-box p,
+  .notice .dim {
+    color: var(--muted);
+  }
+
   .notice p {
     flex: 1;
     color: var(--ink-2);