Do not worry. As long as you have single copy of Shattered Horizon preloaded you are good to go.
The rest (some people seeing "beta" too) is being sorted out and is harmless.
You may eventually get two copies to your gamelist if you preordered (one being used for future testing) but that is still being worked out - the first priority is to get the game released (and the second one is to get onto the live servers and pad our K/D-ratios a bit while we can... early beta it was dev-domination for a day or two, then the testers caught up and things got... ugly for the FM_ side

)