I have 7 Aeon Labs Door/Window Sensors that I have been using within HA for years. Recently I noticed that the contact and alarm entities of 2 these devices did not update on the screen (Lovelace card or otherwise, see image below). I assumed they somehow stopped working but after sometime I realized that the automations associated with these entities fired properly. It was only when viewing these entities via the web ui did they appear to be malfunctioning. The Battery and Zwave entities appear to correctly reflect their state.
I am currently running Hassos 5.2