Hi @SarahSiroka - What are the exact steps you are following? And are you Copying a course? Or importing content from a course?
At our school district, only a Canvas Admin can copy a course (but teachers can import content from a course).
I do know that on some rare occasions when teachers have imported, and they had an error, it was either because their course exceeded the courses size limitations, OR there was something else corrupted in their course. A couple of example of issue with something being corrupted in their course was: way toooooo many Assignments in a course, and this happened because they accidentally had imported a course multiple times, have 4 or 5 or more copies of their Assignment Groups and Assignments. In another example they had bad HTML code on some pages, which was causing issues.
