Skylight wont cast shadows

Hi Everyone

can i please get some help - i just cant ge tthe skylight to cast any shadows.
I am following a few tutorials and they seem to just get it to work.

My skylight wont cast any shadows no matter what i do. I am using a HDRI map
I made it NoMipMaps, i have tried all the options from static, stationary and moveable.
messed around with the settings. I have even uninstalled and reinstalled 2 different versions. 4.22.3 and 4.26
both wont work - i do remember a few days ago it was working but now it just doesnt work

any help please