as mentioned above, I didn't have problems syncing the preferences to a second machine - in my setup simply enabling the sync feature on one single Mac reset all my settings which should have been synced and I was unable to permanently change stuff from that point on.
So I tried again with v2.0 build 131 - but to no avail.
As it turned out, the problem actually was a Dropbox problem, but nothing that could have been changed by waiting for a complete dropbox sync: I thought it would be a good idea to use a subfolder of the Dropbox "Apps" folder for keeping the Alfred prefs - a bad idea, as Dropbox is somewhat picky about this kind of special folder...
The "Apps" folder on your Dropbox root is the designated place for external programs using the Dropbox-API to place shared content. Maybe you already tried some iOS-App with Dropbox support - normally these programs request either full access to your Dropbox or only limited access to its own folder (inside the "Apps" folder); if you grant it, you'll receive an email ("...you've connected a new app to Dropbox. Awesome!") and find this app inside your Dropbox setting under "My apps".
So there obviously is some magic going on with this special Dropbox location: reproducible and independent of the name ("Alfred 2", "Alfred2", "Alfredo", ...) of the subfolder I choose for the Alfred preferences: if I put it inside ~/Dropbox/Apps/ the prefs get corrupted and Alfred is unable to keep the settings.
I now chose an "Alfred 2" folder directly under my Dropbox root and everything works as expected. So my advice: stay away from your "Apps"-Dropbox-folder...
I've been keeping Alfred 2 in sync between my MacBook Pro and Mac mini manually since the v2 beta came out, and was thrilled to see syncing finally come in. However, after fumbling with it for an hour back and forth, I had to delete the syncing folder in Dropbox to make it stop.
Alterations made to the default settings in preferences on one machine (let's say starting with the Mac mini, though this went back and forth several times) would invalidate those alterations on the other machine (let's say the MacBook Pro), essentially resetting it to default preferences, including the deletion of all added themes. Attempts to correct the issue on the MacBook Pro would reset the Mac mini to default prefereces, deleting the added themes again.
Very frustrating. I've since set them both to where they were before manually, and neither of them are syncing with Dropbox.
Love the app, and love the work you guys are doing, though.
