Naya Rivera, dropped from Columbia Records?

It was also stated that Rivera, was dropped from Glee too. Big questions are, 

Is it true? How come?

WHY?

Billboard reported that Rivera has failed to release a full length album after her signing in 2011.
I honestly believe that, after her marriage with Rapper Big Sean failed, her life also failed. Well, maybe just not her life but her "Career life."

Is it true?

Rivera has yet to "Comment" back on this whole statement.