I’ve also had several users report the same problem. The ones whose location I got were in India, so it might be some kind of localised issue.
I have a same issue at Japan.
during to make a WPF application with CoreTweet.
Same Issue switched to https//twitter.com… for now. Couldn’t find any solution used different libraries in node.js to make a request nothing seemed to work. I was doubting my code. This post helped a lot so thankyou. Never thought it will be annoying to see a dog sitting on a couch .
I’m also having the same issue here in France, with a .NET v4.8 application 
several users report the same problem whose location we got were from India
I’ve just had my first report of this too. No changes on my end, and user appears to be coming from India.
I have also confirmed this using a VPN and trying to sign in from a location in India.
CC: @i_am_daniele @andypiper
Thank you all for reporting - This is on our radar and the team is actively investigating. Very sorry for any inconvenience.
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Same here, tried edge and chrome
Sydney
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J_aa_p
#16
Same here, The Netherlands.
Same problem here. In Turkey
We are facing the same problem in Sweden and US. And currently, we are getting too many complaints from our Twitter account users. We would be happy to get a response about the issue asap.
Is there any solution for this? I am unable to log in using firebase
Thank you for the reports and apologies for the frustration. We understand that this has an impact on your apps. This is under active investigation. Unfortunately we are not able to share an ETA to resolution at this time.
The API Status page has an item you can subscribe to for updates.
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We are currently working on a remediation, hopefully this should start to resolve from this point. Please let us know if you are observing a change in success rates.
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It works for me now , egypt
It works for me too, at Japan.
