Here is the symptom. I have a Xmind binary file that I created on macOS Monterrey on a folder under Box Drive control; this is my desktop. When I sync'ed the file on my laptop, Xmind was not able to display the content.
To rule out a problem with Xmind, I downloaded the sync'ed file and compared it with the one on disk on my desktop. They are not the same, indicating that Box Drive is corrupting the file when uploading it. These are small files, O(100 kb).
This does not occur with other files, say pptx on the same folder. Very weird, but reason enough to abandon Box given its unreliability. Has anyone experienced this problem?

