RIP 800+ day streak
Completed my daily lesson on a phone synchronized to the wrong timezone. Killed my streak, even though my daily progress contradicts this...https://imgur.com/a/kxy0n :'(
That looks weird... more people seem to have similar issues today so maybe it's related: https://www.duolingo.com/comment/24944145 Could be a different issue, but that person also indicated their graph looked ok. I suggest you try a post a bug report as Lrtward mentions in that thread. Good luck, hope it gets sorted!
Aww, that's too bad! (｡•́︿•̀｡) I hope it gets nice and big again after being fixed. ❤
These probably won't help right away, but, I lost a long streak too and have made a couple of discussion that I hope will help people a) keep their streak if they haven't lost it b) recover from losing a long streak..
And of course, if you lost a streak and it wasn't your fault, as other have suggested, there is a bug report form. However, staff rarely repairs streaks. Only if a whole group loses it at one time, or if someone has purchased a streak freeze. If a phone didn't sync with the server, it might only show on their side that you didn't earn XP until after the deadline of that day. So, that is why I made discussion a) up there.
Good luck! I do hope you are able to get it back.