[navied]

We are experience the same issue, I have been able to reproduce the issue with the same account by just trying it repeatedly. It will eventually fail, the only solution is to sign out of Instagram, which ends up clearing your session and trying it again.

Instagram had a long period of time it went down yesterday I'd be surprised if they aren't linked.

[svens_]

Private mode wasn't enough to fix the error for us.

At least not in all cases, i.e. we tried production, staging and an instance running on localhost. Private mode usually changed in which places the login worked, but it never helped for all three.

[AlexWhite_]

Yep, it works not for all accounts.