Bug-ish: EAS doesn't see virgin iOS scheme

Facing exactly the same issue but in my case I cannot move forward despite editing the scheme.

I’m running "eas build --platform ios" for the first time on an “expo managed” app and I get the following error"

Error: We did not find any schemes in the Xcode project, make sure that at least one 
    scheme is marked as "shared" in Xcode, and that it's listed in the output of "xcodebuild 
    -list" command

I can see my scheme and it is flagged as “Shared”. Even if I edit it and then run the command I still get the same error.

If I run the old command expo build:ios it works as usual and creates the build.

Any idea please?

Cheers