I can't import any more my new dives in MacDive

I get the "No new dives found!" error, while I have new dives on the computer.
I could import the first 11 dives (I had to set the Dive Download as OSTC 3), but now I can't import the new ones (other 5 new dives)!
I tried to import with "All dives", "Any dives that have not been imported" and "Only new dives" options.
The computer is the OSTC 2 (Blutooth)
I tried with HeinrichsWeikamp OSTC 3, OSTC cR and Sport. With this computers selected, I can execute the Dive Download, but no dives.
The result is always the same:
"Download mode enabled" + "Exited" on the Computer
"No new dives found!" error on the MacDive
I can't select the HW OSTC 2, because it is still missing in MacDive:
http://www.mac-dive.com/forum/viewtopic.php?f=2&t=1897
Please let me know
Thanks