Hey Tev thanks for sharing your thoughts.
However, in my initial files i have used no sun at all, i use a point lamp and an area lamp.
I do agree though it must be the world volume as if i delete one of the /lamp/area/box volume the issue still persists, even if i just leave a lamp only.
However something good:
It has been a while since we heard but i checked again and i think i don't get the issue anymore when trying this on 2.90 alpha. But only a developer can confirm if this was intentional bug fixing or a random bi-product fix of another work... So, on 2.90 alpha:

Hello, just an update that issue persists on Blender 2.82a (2.82.6) downloaded today.

Ok so….For some reason when the script run it lunched 2.79 so i deleted it and the config files for all versions that i had at:
/Users/usery/Library/Application Support/Blender/

Hello, can you please be a bit more explicit on the exact steps i need to follow since this is the first time i do it?

Hello, it's the same with "version: 2.81 (sub 16), branch: master, commit date: 2019-11-05 18:23, hash: 9d1031b01199, type: Release" :/