Has anyone had the bug below happen in Excel 2013 when they have multiple sheets open? I have it happen daily and it's extremely frustrating and risky for incorrect data entry.

Bug Description:

I have at least two Excel sheets open at once. While working in Sheet #1, I attempt to enter data into a cell and it doesn't show up. Next thing I know, I look in Sheet #2 and the data is in a random cell in that sheet. I have to undo the change on Sheet #2 and save the changes before I go back to Sheet #1 and re-enter the data.

This doesn't happen every time, but it does happen to me multiple times every day and it's really risky due to the importance of the data I'm tracking. If I don't notice this happening I can end up losing important data that's copied over on another sheet. This is especially problematic when I have numerous sheets open at once. This never happened in the last version of Excel and seems to be specific to 2013.

Has anyone had this happen and if so, how were you able to fix the issue (if at all)?