Notes from TAC case:
I was able to reproduce your problem in my lab for FTD in version 7.0.4 (which uses ASA 9.16.3).
After upgrading my lab device to version 7.0.5, I can confirm that this defect is resolved.
FTD 7.0.5 is using ASA in version 9.16.4.
FTD 7.2.2 is using ASA in version 9.18.2
