Hi,I stumbled into this too, thanks to your report I was able to work out the following:
It seems to be the behaviour is that unless you are using packages from those specific components then that local component-mirror doesn't get created properly therefore you end up with errors, but a working CD.
The only component-mirrors that fail to get created properly are the ones with 0 packages anyway, so these errors are ignorable.
Thanks, Imran
