[U]Same here, got to the Twitter website and after that nothing.
A reboot didn't help either.
When logging onto Twitter through the web it also isn't visible under apllications which have acces to my account.

After the advice from Ministeri it worked, thank you!

A other issue I was facing, I was setting up my hotmail account and the mail application was updating my mailbox. So I have 115 new e-mail messages. I was able to select them 1 by one(there should be a option select all) and when they all where selected there wasn't a "mark all as read" option.

I now had to manually click through every message to make it "read". Not a dealbreaker but also not a sweet way to make it function as I wanna.