beta-update-90e: Fix 3d object thumbnails

This is an automated client release produced by the master FreeSO server. These releases match up with a branch on GitHub, but with some addon content such as a custom catalog and splash. It can be downloaded and installed directly, but it is better to do so through the game's launcher/updater.

The incremental update is applied by simply extracting the zip over the previous version of the game (though the updater still affords extra validation here)