Merge pull request #4378 from mempool/mononaut/tomahawk-logs-fix

Set fallback server out-of-sync when unreachable

backend/src/api/bitcoin/esplora-api.ts

@@ -101,6 +101,7 @@ class FailoverRouter {
         }
         host.unreachable = false;
       } else {
+        host.outOfSync = true;
         host.unreachable = true;
       }
     }