I did a little more digging.  I too can get it to work correctly, so long as there is no Default Clock task identified.

However, if I create a default clock task, it appears that the :clock-in property is ignored.

I'll try to dig into it a little more, but I can reproduce it every time when there is a default clock.

Thanks again for looking at it.

On Tue, Dec 13, 2016 at 8:09 AM Nicolas Goaziou <mail@nicolasgoaziou.fr> wrote:
Hello,

Mark Wood <mjwood0@gmail.com> writes:

> After recently upgrading to 20161118, I notice that the clock-in property
> in my org-capture-templates is no longer functioning.  It appears to
> successfully clock me out of my current task, but that's it.
>
> My capture template is:
>
> (setq org-capture-templates
>       '(("t" "Todo" entry (file "/org/refile.org")
> "* TODO %?\n%U\n" :clock-in t :clock-resume t)))

FWIW I cannot reproduce it, i.e., clock is properly started.

Regards,

--
Nicolas Goaziou