What causes certain structures to be visible when cursor is over it in edit and vanishes when you move the cursor and that is missing altogther when the game is actually run. This has suddenly started occurring in Tenbury line for me.
Maybe you need to increase your scenery settings: Settings > Advanced > Scenery Quality and Scenery Density. John
Ensure your scenery density is set to max. At the main menu click on Settings, Advanced, Scenery Density And ensure your editor detail level is at max. In the editor lower left, Options Panel, set Detail Level = 10
