I can't to expose the option sort Post Date in a view in Drupal 7

Question

I have created a view type content, with the follow features:

Format

Format: Unformatted list | Settings

Show: Content | Teaser

Fields

The selected style or row format does not utilize fields.

Filter criteria

Content: Type (= article)

Content: Published (Yes)

Sort criteria

Content: Post date (desc)

When I checked the option "Expose this sort to visitors, to allow them to change it " in Sort Criteria>Post Date and press Apply, the sort Expose doesn't show and when I am going again to Post Date I can see that the change was not stored, the "Expose this sort to visitors, to allow them to change it" appears unabled.

What's my error?

Thanks for your help.

Answer 1

It seems to be an issue with having the devel module enabled. If you are using it try disabling it and it should work.