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I am building a fairly complicated LDAP and OG integrated site. When an LDAP users logs in the first time the system properly assigns Drupal roles and OG groups based on their LDAP groups membership. When the same users logs in a second time it revokes all their OG memberships. During subsequent authentications it alternates between assigning and revoking membership on each login.
I updated the site from 7.x-2.0-beta5 to the current dev without success. I don't see any issues in the queue reporting similar problems (although obviously I could have missed it), so I'm sure there are other issues in play since it seems like lots of people would complain if it were common. I'd be happy to provide additional information, but I'm not sure what would be useful. I believe the basic mappings are correct, since it successfully assigns the correct groups 1/2 the time.
I had to tweak the requested config information to hide the information about who owns the site, but it's very close to accurate. Like I said, it connects to the server every time, and works end-to-end 50% of the time.