From 2d6fa5c4531521b1292a6eb45d31a04096783bca Mon Sep 17 00:00:00 2001
From: jjlawren <jjlawren@users.noreply.github.com>
Date: Mon, 25 Oct 2021 16:36:26 -0500
Subject: [PATCH] Fix updating sensor on unlinked Plex server (#58418)

---
 homeassistant/components/plex/server.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/homeassistant/components/plex/server.py b/homeassistant/components/plex/server.py
index af8d96cce55..4a4fe84096c 100644
--- a/homeassistant/components/plex/server.py
+++ b/homeassistant/components/plex/server.py
@@ -454,7 +454,7 @@ class PlexServer:
                     _LOGGER.debug("Photo session detected, skipping: %s", session)
                     continue
 
-                session_username = session.usernames[0]
+                session_username = next(iter(session.usernames), None)
                 for player in session.players:
                     unique_id = f"{self.machine_identifier}:{player.machineIdentifier}"
                     if unique_id not in self.active_sessions: