This issue has been discussed since the release - every airport that is somehow “disabled” in the Bing maps won’t exist in MSFS.
Disabled means:
- the area is pixelated in the map (like EDDS…for whatever reason)
- there are clouds over the airport so the AI is not able to “detect” it
- there are temporary constructions etc. in the recorded satellite image which somehow cover the airport for the AI (Heubach is a good example - there is a huge white tent from a corporate celebration event in the picture; so the airport wasn’t recognized)
The link by GateGiorgo is the way to go.