2.1 is 3 releases old and is no longer supported by Ansible. There has also been massive improvements and bug fixes for Windows since then and I would highly recommend you upgrade to at least 2.3 and try again.
I don’t know why it failed but unless you can verify it is still happening on the latest version there is not too much we can do for you. -- You received this message because you are subscribed to the Google Groups "Ansible Project" group. To unsubscribe from this group and stop receiving emails from it, send an email to ansible-project+unsubscr...@googlegroups.com. To post to this group, send email to ansible-project@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/5cb1823c-7b76-44e3-9fb3-3c89ff5ec598%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.