Have you removed the default KORD from Asobo with the Content Manager ?
Even if the scenery is excluded visually, it might still take extra memory and cause a crash, that's why we disable it automatically in the FSDT version of the installer, but since we can't do that in a Marketplace installation, that's left to the user to do it.
In any case, I just tried it now, and it works just fine, following this procedure:
- Download KORD from the Marketplace
- Go into Content Manager, click the small "list" icon next to the "package" icon to show individual packages inside bundles, searched for Asobo KORD and removed it
- Restarted the sim
- Went to KORD, no issues, see the attached screenshot
However, I must not I'm using SU9 Beta, so maybe this is one of the several sim crashes that are going to be fixed with SU9. I have SU8 installed too, but it's the Steam version, so I can't check the MS Marketplace KORD there, because the download Microsoft gave us for our products is for the MS Store version only. However, since nobody else reported issues with it, I must assume the scenery works with SU8 as well.