In case of issues syncing Dive Organizer with other devices (e.g. with iDiversDiary), it could be necessary to do a little troubleshooting.

This can be done as follows:

• Help | About Dive Organizer: “Support” tab.

• Check the “Traced sections > Sync” checkbox.

• Try again to sync (even more than one time).

• At the end of the attempts: "Help | Get application logs".

Save the report and file it via WeTransfer: https://mares.wetransfer.com/  

Other useful articles:

Dive Organizer and iDiversDiary synchronization issues