Reason of losing progress

Hello everyone, this is my first post here. I saw many topics about lost progress, it happened to me too.
I don’t saw any fix for that on forum so i letting you know what i figure out.

Problem is creating 2 account for one user, it can happen when you login with your github account instead of freeCodeCamp account (or vice versa). If you lost your progress just try to login with your e-mail or github (i don’t now about facebook, i didn’t tried this), it worked for me.

I hope that this post will help someone. Good luck with coding:)