We're have similar reports with sign in issues on PS4 and we're working on a fix. For mobile, you could try uninstall, restart your device and reinstall the app and let us know if that fixes the issue.
Do you see this happening on both desktop and mobile devices? Keep us posted.
-
-
This Tweet is unavailable.
-
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.