Hello, I created a group in Canvas for 15 students.  Within this Group, I created 6 "Pages" about 1 week ago.  Two of those pages were given "to-do" dates.  The others were not given "to-do" dates.  I logged on today, and 3 pages are missing.  Just gone.  Vanished.  The 3 that remain include the two pages with "to-do" dates, and one that has no "to-do" date.  I have tried the mainpage /undelete trick, and nothing was there that had any relation to my missing pages.  How do I recover them?  Why did they vanish?  

Thank you!

Professor CC, Grad Program