Car waking several times only when plugged in, charges for 1 minute, idle, sleep, repeat.

Hello,

I'm looking for recommendations if anyone else has seen this behavior before. When 2018 MS is plugged in it will charge to the set level, idle after the charge is complete, then goes to sleep. About 10 minutes later the car wakes up, charges for 1 minute, idles, sleeps, then repeats the behavior. It started in August and only happens when plugged in. If the car is disconnected it will sleep as expected until intentionally woken up.

Thanks,

John