Make sense.
Regarding your Evidence 1: I saw a posting whose AD was a Saturday but on Sunday night AVM did not update but on Monday morning it updated. This was the same as your FP situation.
Regarding your Evidence 2: Since AVM and the computer system that the officers use are two separate systems, it\'s very likely that they sync at midnight.
Regarding your Evidence 3: It looks that when someone checks AVM on that day, the AD is the same day. It\'s possible that when a case is approved, the AD is posted as the following day when the system updates.