[ASUS RT-AC86U] AIProtection settings not taking

I have firmware 3.0.0.4.284_81351

I have a bunch of devices in the AiProtection - Web & Apps Filters ( AiProtection, Parental Control tab ). Altering any of a devices filter settings ( Adult, p2p & file transfer, Streaming & Entertainment) do not take after hitting apply. Attempting to remove a device also does not take after hitting apply. However I can disable the Web & Apps filter entirely.

So poking around for clues I noticed in the log a stack of entries like this..

Mar 7 21:41:18...

[ASUS RT-AC86U] AIProtection settings not taking