I checked Org-mode package version with `org-version`, get `9.0.7`, still have this issue. I updated to latest org-mode ELPA version.

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On Wed, May 31, 2017 at 10:06 PM, Nicolas Goaziou <mail@nicolasgoaziou.fr> wrote:
Hello,

"numbchild@gmail.com" <numbchild@gmail.com> writes:

> I have a link in org-moe file like this:
>
>  #+BEGIN_SRC org
>  [[file:Data/images/logos/Full color Git logo for light backgrounds.png]]
>  #+END_SRC
>
>
>  *The file did exist.*
>
>  I have elisp code like this to fontify link when the file does not exist:
>
>  #+BEGIN_SRC emacs-lisp
>  (org-link-set-parameters
>   "file"
>   ;; TODO: fix path contains space case.
>   :face (lambda (path) (if (file-exists-p path) 'org-link 'org-warning)))
>  #+END_SRC
>
>
>  But it is fontied as red. I tried to debug info by print of ~path~ in
> upper `org-link-set-parameters` lambda function.
>
>  It return for path:
>
>  #+BEGIN_EXAMPLE
>  "Data/images/logos/Full"
>  #+END_EXAMPLE

Could you update Org to a more recent version, e.g., 9.0.7. It may have
been fixed already.

Regards,

--
Nicolas Goaziou