If an ACID has a MASTFAC, it cannot be moved to an SCA unless OPTIONS(72) is set in the Top Secret parameter file.
OPTIONS(72) allows a MASTFAC (Master Facility) on all ACID types that are capable of signing on. There is no TSS MODIFY command to set this option. To set OPTIONS(72), you must specify OPTIONS(72) in the TSS parameter file and do a temporary shutdown and restart of Top Secret to pick up the change.