Here is what I found on this forum:
The BulletDust said:
Blockquote Bear in mind that Dropbox only supports unencrypted Ext4 now, nothing else, not even encrypted Ext4.
What file system are you running? > Blockquote
That post was made on August 2018.
At the same time, franksmcb says has that DropBox works on the encrypted ext4 drives.
Was the problem fixed since August 2018?
If so, what was the solution?
How can I apply it to my system?
Can anyone help me please?
Thank you,
C