Eugenij
--- a/src/services/notifications_fetcher/notifications_fetcher.service.js
+++ b/src/services/notifications_fetcher/notifications_fetcher.service.js
    const readNotifsIds = notifications.filter(n => n.seen).map(n => n.id)
    const numUnseenNotifs = notifications.length - readNotifsIds.length
    if (numUnseenNotifs > 0) {
-      args['since'] = Math.max(...readNotifsIds)
+      const latestNotifications = readNotifsIds.length === 0 ? notifications : readNotifsIds
+      if (latestNotifications.length > 0) {
+        args['since'] = Math.max(...latestNotifications)
+      }