FYI cron script not running in cron.daily on ubuntu

[f1-outsourcing]

I was puzzled why the cron jobs were not running on a ubuntu vm (not using ubuntu much). It seems that if you put (symlinks to) acmecron.sh, these are skipped. If you remove the .sh they are processed. Maybe this is a bug in ubunut

you can verify this with:
run-parts --test /etc/cron.daily