From a revised version of Social Security's Emergency Message EM-18003 on Important Information Regarding Possible Challenges to the Appointment of Administrative Law Judges in SSA’s Administrative Process:
If a claimant or representative files a timely Appointments Clause challenge and timely requests Appeals Council review, the AC will consider the challenge in the context of the facts of the case (including, but not limited to, the date of the ALJ decision and the date the challenge was raised) in determining whether there is a basis to grant review. The AC will determine whether granting review is appropriate under 20 CFR 404.970 or 416.1470, or both, when considering both the decision on the merits and any potentially unresolved Appointments Clause issues.
In those matters where a timely Appointments Clause challenge to an ALJ decision issued prior to July 16, 2018 is raised to the Appeals Council in a proper request for review, the AC will grant review and issue a decision or order remand, as appropriate.