Sorry you have never been able to efile state from a different return file from federal.
Are you filing MFS? Then you would have 2 separate files, one for each spouse. And you can efile both federal and state.
But if you need to file a Joint federal and separate state returns see,
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-prepare-a-joint-federal-return-and-se...
