new Model 3 owner here - and my app seems to be in a coma too - used the car yesterday - finished charging in the middle of the night - so sound asleep the app has told me it's waking up for the past 25 minutes - sometimes switching to say it updated yesterday - but no progress from phone reboots or refreshing, app opening and closing seems to help.
So yeah - I googled Tesla app in a coma - and this was the first hit - seems a rare problem