diff --git a/conversations.php b/conversations.php
index d436c06..4b52f0a 100644
--- a/conversations.php
+++ b/conversations.php
@@ -928,6 +928,7 @@
                 this.loadingMessages = false;
                 this.hasMoreMessages = false;
                 this.earliestMessage = null; // timestamp of earliest loaded message
+                this.earliestMessageId = null; // id of the earliest loaded message (for stable pagination)
                 // Filter state: 'all' or 'unread'
                 this.conversationFilter = 'all';
                 // Pagination state for conversation list
@@ -2102,6 +2103,7 @@
                     let messages = [];
                     let hasMore = false;
                     let earliest = null;
+                    let earliestId = null; // local var for earliest message id
                     if (data && data.success && Array.isArray(data.data)) {
                         messages = data.data;
                         hasMore = !!data.has_more;