Are you facing any problem uploading photos on twitter.If so,then you are not the only user facing the issue on the website.Since last 3 hours,twitter users are facing problems uploading photos. The same problem has been acknowledged by the twitter and they are working on it.
They posted about the issue which reads,
Some users may be experiencing an issue when uploading a photo. Our engineers are currently working on this issue.
One week ago,twitter users were facing problem logging into their accounts.I will keep you posted about the status of the issue.
Update:– Twitter has updated that the issue has been fixed.