Were you flying on an AF-metal flight out of 2D? If not, you may have been traveling after the recent terminal rearrangements took place. There are no SkyTeam flights departing from 2D anymore. There are a few residual OS and AY flights on which AF has codeshares, but AF is not obligated to provide lounge access to all SkyTeam elites on such routes. I believe that AF is now using this as a contract lounge.