Hi, I have a spreadsheet that has two read/write users added.  They add data entry for me and I review them online.  We haven't had any issues on it until today, and all the sudden, the both read/write users can no longer see the data that's in the spreadsheet above certain rows.  They were able to see it fine until yesterday.  I as an owner can still see all data on the spreadsheet, and the rows are not hidden or filtered or anything.  Please let me know if you know how to resolve this issue.