Why did my streak reset?

why did my streak reset, i try to do atleast 1 question every day(since my finals are near) , even the submission is in my profile. yesterday i solve the question A2( Question) but now today after solving a question it shows me 1 day streak?

I cannot see a submission for 29th November on your profile. I think that is the reason why your streak did not update.

see the problem A2 i, mentioned above, that the question i submitted yesterday :frowning:

28th. Not 29th.