Having issues with missing chunks?

When I have gone back into a document I edited yesterday, I am missing a whole chunk? I want to avoid having to reupload and reedit the doc. any ideas?

Can you provide more detail. Part of the document isn’t uploaded there? What is missing exactly?

When I went in to update some chunks formatting, I found I was unable to find the 11th chunk (Not sure what was in it but i was unable to find the 11th).

I just had to remove and reupload the file and i had all 11 of them