What could be reasons Flightsim.to city assets are not showing? And how to make it work?

Hello all,

Already 2 times I tried to get some additional Flightsim.to scenery assets for a city in MSFS 2020.

1 time for Baghdad: https://flightsim.to/file/28177/baghdad-city

1 time for Kuwait City: https://flightsim.to/file/3279/okbk-kuwait-intl-airport-and-city

And both the times it did not work.

In Baghdad I saw only a grey base plate were the objects supposed to be, but the assets were not there. And in Kuwait City I did not even see that, there just were no assets in the city, while the Flightsim.to page looks promising.

If I look into the community folder, the folders of the scenery assets look all right too me.

I am not a programmer or anything, but I was wondering, are there some standard simple things I can check to make Flightsim.to scenery work and show up? Does anybody has some ideas what I could check concerning these Flighsim.to assets?

If somebody knows, please le me know.

Greetings,

Boudewijn