I have built my client a site at www.christinafrench.com
Everything is running smoothly except the contact us page. I've created a contact page utilising the User Defined Form, after I published the page it all looked fine. about an hour later my client emailed me to ask where the contact form was... Obviously I looked on line and it was missing from the menu. I logged into the admin, checked everything there, and re-published it.... sure enough a while later it had un-published itself and was not visible on the site.
Has this happened to anyone else, and is there a solution to this issue. It's driving me up the wall..... I've re-published this page about 8 times now with the same end result, I've deleted it, and rewritten it, only to get the same thing.
Just to make sure - are you sure the page is unpublished, as in turning orange in the CMS? I've never seen that before, but what I have seen before (quite often) is a page's access rights suddenly changing to 'logged in user only'. In those cases you'd see it if you're logged in, but it'd still be gone later on. This may not be the case here, but I thought I'd mention...
I had a similar thing happen this evening. A page that was previously published suddenly disappeared from the site. The cms shows that it is published, but any attempt to open the page on the live site results in a page not found error. I've only had this happen once before, I think I ended up dropping the table for that particular page and rebuilding it. I'm doubtful that will solve my problem this time as I didn't make any structural changes to the page after it was originally published and working, but it's looking like I might have to try it in the morning.
ETA: My problem must have been a server issue. No errors last night, but when I went in this morning the page was back to being visible and active on the live site. No idea what the problem was, but it is working (again) now. Guess I'll have to keep an eye on it.
I've checked this issue again through a different theme. I loaded the default SS template and the contact page was there... Reloaded the Wine template and it disappeared again. It would appear there's an issue with the menu in this template possibly??