Hey,
I usualy work and edit files on my PC with Windows 11 and somtime I work on the same files on my MAC.
I noticed several times already that somtime when I open a specific excel file on my PC (didn't confirm on MAC or other files) that I'm missing data that I know I added.
When I open file history on dropbox.com and check older versions I can see the missing data.
I always close the files when I finish.
This happened even when I wasn't working on the Mac between the times I edited the file.
I'm the only one working on the files.
This is a critical problem and if I can't trust Dropbox we have a serious issue.