Existing page disappears after importing another page.

heidi_liddle
Community Novice

I had published a page for this week's math instruction in my Canvas course. Then, I imported a new page for next week's math instruction. After importing, this week's math page was gone.  I only have the new one for next week. I have tried the /undelete trick, but the page is not listed. This also happened to a colleague. Any suggestions on why the pages are disappearing?