This must be one of the most frequently asked questions of late. Because of the extenders, Sch 1 for 2018 is now back in draft. If you are certain your client's return is not impacted, you can try check the box to ignore the CD and your return may still be e-filed. Otherwise, it may take a while given the current state of things for the IRS to get to finalizing the updates.
Still an AllStar