Unreal Engine 4.21 Preview

Anyone getting Failed to execute aapt error when packaging for Android?

PackagingResults: Error: resource android:attr/fontStyle not found.
PackagingResults: Error: resource android:attr/font not found.
PackagingResults: Error: resource android:attr/fontWeight not found.
PackagingResults: Error: resource android:attr/fontStyle not found.
PackagingResults: Error: resource android:attr/font not found.
PackagingResults: Error: resource android:attr/fontWeight not found.
PackagingResults: Error: failed linking references.
UATHelper: Packaging (Android (ETC2)): Failed to execute aapt