Slow or even can't load any online map data, always stuck at loading when using either a320 or YSSY airport

Do you have any add-ons in your Community folder? If yes, please remove and retest before posting.
Are you using Developer Mode or made changes in it?
Brief description of the issue:
As long as I enabled online data settings: BING DATA WORLD GRAPHICS and PHOTOGRAMMETRY in DATA settings, I couldn’t enter game for either airport YSSY or a320neo. Here is my trials:

a) [ONLINE DATA]a small aircraft, YSCB(canberra) or YMML etc. → good
b) [ONLINE DATA]a320neo, YSCB(canberra) or YMML etc. → STUCK!!!
c) [ONLINE DATA]a small aircraft, YSSY(Sydney Airport) → STUCK!!!
d) a320neo, YSSY(Sydney Airport) (turn off BING DATA WORLD GRAPHICS) → good

e) [ONLINE DATA]Training → Small aircraft-> good
f) [ONLINE DATA]Training → Airliner → STUCK!!!

So here is the thing, if I turn on data, either I use YSSY airport or a320neo, would stuck, and even I wait for hours (I tried a whole day, still stuck!!)
But if turn off BING DATA WORLD GRAPHICS everything works fine.
Or I avoid using a320neo or YSSY airport, it works too.

My guess is the data needed for a320neo or YSSY airport is much more than small aircraft or other smaller airports.

Another observation is that either in World Map or map in Settings/DATA/MAUNAL CACHE, it loaded abnormally.
In World Map it seems never load at all, while in MAUNAL CACHE, it can load a little bit, but very limited zoom level. when I zoom in(e.g. switch to High cache block option), it never loaded.

I am using a NBN in Sydney Australia, my network is more than good. And from my attachments, you can see the delay is quite acceptable.
So the question is why?? Can anyone help please. I’ve been “Playing” for 100+ hours, but never actually played a minute… :frowning:

Much appreciated!
Provide Screenshot(s)/video(s) of the issue encountered:

I am new so can only post 1 screenshot, for more, please see attachments here:

Detail steps to reproduce the issue encountered:
Turn on all online data settings, then choose a320 aircraft, depart from YSSY airport. then load game, will stuck at progress bar 100%

PC specs for those who want to assist (if not entered in your profile)
I am using Medium graphic settings, so it should be more than enough for my PC:
OS: Windows 10 20H2 19042.867 with DirectX 12
CPU: Core i7-8700 @3.20Ghz 6 cores
Nvidia GeForce RTX 2070 8G
32GB RAM 8Gx4 2400Mhz
SSD970EVO Plus 500G

Did you submit this to Zendesk? If so, what is your ticket #?
yes, #100902