so I have had this exact config working on 85.1 for 2 weeks, tonight, my hall automation stopped working, then after a reboot it started working again and now the landing one stopped working …
It does if for some reason the condition in the one automation passes where the other fails. It’s hard to tell because those conditions are looking for a specific time format. So it could be treating those numbers as HH:MM or MM:SS or as the first supplied number.
Well, you are only using 1 timer for both. That will cause problems if one automation starts and uses the timer and then you try to trigger the other automation. Make a timer per automation and that might solve your problems.