In Site Administration > Courses > Add/edit courses > (any category)

The "Re-sort courses by name" button doesn't work in all categories. And when it doesn't work, I can't even sort the courses manually by using the up/down arrow icons.

Relevant tidbits from forum discussion at http://moodle.org/mod/forum/discuss.php?d=93618 :

We've upgraded to v1.9.2 and the "Re-sort courses by name" button still doesn't work.

• Only one of our instances is affected. Unfortunately, it's on our biggest production instance.
• No error message, not even in php.log
• It works only in categories where the course names are mostly-alphabetical
• It fails in categories where the course names are in this format: "ENGL 1100: English Literature 1 (S10)". Are the digits or punctuation characters breaking the sort code?

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May be related to MDL-14580