Created attachment 42163 [details]
An scalc file showing an unsuccessful attempt to copy sheets
I have attached my scalc file.
Basically, I made a spreadsheet calendar for January and wished to copy the sheet so I could change it for February.
I right-mouseclicked, checked "move/copy" then checked "copy" to end position, and got the attached gray page.
*** This bug has been marked as a duplicate of bug 33169 ***