Long runs change

Hello, I am having issues with my training app. My distance goals keep changing for my long run (example: i opened my app to 5 miles schedule for this saturday and then 5 minutes later opened again and the run was 2 miles WHAT?) is this an app bug or a programming thing? It has been happening for a few weeks leaving me crying before I start my runs because I am so lost in this program. I am trying to run a race so I cant have program glitches like this

  • The workouts from Garmin Run Coach will change the workouts on a daily basis based on the metrics you upload. Maybe you did the first sync of the day when you opened the app the first time. Then it started to calculate which workout to do today and then it changed it.

    If you want a bit more static plan but still adaptive you should use one of the training plans from the named coaches.