MAUI new Apple requirements

Hi everyone, I suddenly get these errors from the Apple Transporter when uploading my MAUI app: Asset validation failed (90270) Unsupported toolchain. Packages submitted to the App Store must be created either through Xcode, or using the productbuild[1] tool, as described in "Submitting your Mac apps to the App Store." Packages created by other tools, including PackageMaker, are not acceptable. [SIS] (ID:...) Asset validation failed (90259) Bad Bundle Executable. You must include a valid CFBundleExecutable key in your bundle's information property list file. (ID: ...) Any guidance on how to fix these issues?
1 Reply
taketwopayone.
Just as a note, this app is in production and upload worked just the other week so should be something new that is required