Earlier today (20/08/2015 between 15:00-17:30 BST) we released an update for Microsoft Flight Simulator X: Steam Edition through Steam. This updated FSX: SE from version number 62613 to 62615.
Following the release of this update we received feedback from the FSX:SE community indicating a possible menu error whereby scenery content is listed twice due to formatting problems in the scenery.cfg file. Having investigated these reports, we believe that this error has no affect upon gameplay, however we have made the decision to rollback players to the previous build of FSX: Steam Edition, namely version 62613.
Those players who have updated FSX: SE to version 62615: Please restart Steam to automatically revert back to the previous version. If FSX: SE was not updated, then no further action is required.
If you believe that you have been affected by this issue or require additional assistance, please do not hesitate to contact us direct through our dedicated FSX: SE support website: http://dovetailgames.kayako.com/
Dovetail Games would like to apologise for any inconvenience this may have caused, and would like to thank the FSX: Steam Edition community in helping to identify this issue.
Microsoft Flight Simulator X: Steam Edition Team
Dovetail Games