Thread:Project:Support desk/MW 1.23 Category pages not being linked if spaces in name but works with/reply (2)

Well, that's really weird, and I've never seen something like this.

Both forms should work the same. Check if that's not a cache problem. For example, try editing the category page and see if the pages are correctly listed there.

A link to your wiki, in case it's public, would be very useful.