For me it doesn't works. I changed from 'api.instagram.com' to 'www.instagram.com' for the Oauth - have one "302 redirect" back to my site with "error 400". Strange...
Ditto here, it comes and it goes, but I can see this switch doesn't help our overall fail rate.
Okay, thought I'd mention it because it's had such a significant effect for me. So that possibly means that in my case the Auth0 <-> Instagram connection is something to investigate further.
Same here, made the change a couple of days ago and saw no change in failures.