Garmin connect not showing any more HR graph...

I'm having this same issue. Brand new Garmin FR245, iPhone 11. Data is fine on the watch and the website, but not on the GC app.

All I did was charge the watch for an hour or so. When I plugged it back in this happened.

Same issue here with my Forerunner 235 and an iPhone 11.  This is really becoming a pain.  

same with brand new forerunner 735xt and iphone 7. it looks like some other people have had this problem come up as of this morning like i did. thanks for any solutions 

Same issue, new Instinct and Iphone xsmax.  Worked fine Sunday and yesterday, now no heart rate graphs in app.

I have the same issue with the Vivoactive 4 connecting to the IPhone X. I don’t see the daily heart rate charts since Saturday.

I have the same problem.  The heart rate timeline will not display on Garman connect.  In its place is “ Sync your device to see today’s timeline“.  This happened once before and I had to delete the app off of my iPhone and delete all the data as well.  I would prefer not to have to do that again. Please advise.

I also have the same problem and only purchased by Vivoactive Garmin on Friday. HR was showing two days ago and now there is no history. Garmin Connect app says I need to sync with my watch. I use an iPhone. I’m tempted to return this device as it is buggy.

Same problem here. Heart rate data suddenly disappeared. Still on the Garmin Connect web version though.

I have the same problem. Vivoactive 4 with Iphone 7.

I can't see the graph of the HR in app. It ask me to Sync my device, but not work.