diff --git a/lingua-franca-ref.txt b/lingua-franca-ref.txt
index ae18e76fb..1f7391f92 100644
--- a/lingua-franca-ref.txt
+++ b/lingua-franca-ref.txt
@@ -1 +1 @@
-reactor-ts-remove-ulog
+master
diff --git a/src/core/federation.ts b/src/core/federation.ts
index 2f1ea7b25..3052074a3 100644
--- a/src/core/federation.ts
+++ b/src/core/federation.ts
@@ -1929,6 +1929,7 @@ export class FederatedApp extends App {
     this.sendRTINextEventTag(this.util.getCurrentTag());
 
     if (
+      this.upstreamFedIDs.length === 0 ||
       this.greatestTimeAdvanceGrant.isSimultaneousWith(this.util.getStartTag())
     ) {
       // PTAG for the start tag is already received, call _next immediately.