I have been receiving messages that Dropbox will end support for syncing drives with uncommon file systems as of November 7th. The supported file systems will be NTFS for Windows, HFS+ or APFS for Mac, and Ext4 for Linux.

For those that use Dropbox it is a good idea to check out the following link for instructions so you don't have any interruptions.

https://www.dropboxforum.com/t5/Erro...why/m-p/290058