Hi, I don't know about IG stories as I think it's only for the people you choose, it's not really "public". But if it's public there's not reason it can't be reposted here on Steem.
And for the "invalid IG account" error, you're right, it's because your account is in private mode.
Thanks for reblogging.
By the way in a few hours, the site is gonna change and there's gonna be a lot of new features.
@algo.coder That’s something, I really like my instagram account on private mode, anyways, looking forward to the new features..
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