Board Thread:Friend Code Exchange/@comment-26424426-20151228162819/@comment-26424426-20151229015951

Oh, it's a long story, and happens randomly and to anyone. A forum is dedicated to it if you'd like to look at it -- just click on the Forum tab at the top and you can see it at the top. You can also read about it in my blog.

Those whose boards locked before the Observation Deck update have had them locked for the most part --:but have most able players and generous, supportive friends.

Those whose boards locked after the OD update like me, have had more success in unlocking them. G5 is researching it, but players on this forum have been instrumentail in helping unlock themm-- directions posted in the same forum. I was able to do to unlock for a while, and am closer now.

As best we can tell, it comes from the build up of multiple charges on pictures and puzzles that creates phantom charges. You have to play them to clear them all out. We know that charges get overwritten also leading to a build up. I hope this has helped explain the issue.