One other thing:
I've noticed a pattern with Postal as well.
The Addon works during the day (it's been working for me since around 8:00 A.M. E.S.T Today), but it stops working at night (sometime after 7:00 P.M. E.S.T.). Postal has consistently followed that same pattern on December 22, 23, 24 and 25. It's working now (December 26 A.M.), but I'll have to log into the game later on tonight to see what happens.
I'm wondering if CRZ might be having an impact on the functionality of the Addon (I know that sounds strange, but it's Blizzard... so who KNOWS whether or not that's the case).
It's an odd pattern... I'm just trying to consider all of the possibilities so to "rule out" what may be or is not the problem.
Today (December 26th, 2019) Postal was working in the morning (I logged in at around 8:00 A.M. E.S.T.) and it continued to work throughout the day. I logged in again at approximately 7:00 P.M. (E.S.T.) this evening and the Addon was no longer working.
I'll log in tomorrow in the A.M. to see what happens, but based on the pattern that I've been following I suspect that Postal will be working again in the morning.
Logged into the game at 5:00 A.M (E.S.T.) December 27th. Postal was working again.