All conditions allowing the capture of the point are validated : -> previous linked base all have secure A point -> there is no enemy defending the A point But the A point isn't capturable. This is currently (at this time) the case for Ceres on Indar on Cobalt. __________ This is a very old bug, and it only ever used to happen on Watersons on Esamir. But again, it was very very rare. Recently I've seen it happen quite a few times on Hossin late at night. As with most bugs, I'm not saying this is the case, but it is possible that there is an exploit allowing players to block an A point preventing the opponent from flipping it.