You're able to pull one creep over an edge, but not a whole train. This is as-designed, there is no bug here. Honestly making trains inside one room is a side effect of implementation which we decided to not fix.

@demawi Thanks for the report, I'll take a look

It should be fixed now on the official server, and on community servers starting from version 4.1.5.

@myr This feature went live for both official and private servers.

@yoner Lifetime unlocks are here to stay, we're going to discontinue recurring subscriptions only.

This is a minor update containing the following features and improvements:

• Added new method StructureLab.reverseReaction to "break down" boosts to their components
• Added new method Game.map.getRoomStatus to determine if the room located in Novice or Respawn Area.
• Game.map.isRoomAvailable is deprecated now.
• Game.map.isRoomProtected has been removed since it's been deprecated a long time ago.
• Implemented system.getTickDuration and system.setTickDuration CLI commands for community servers.
• Added UI option to hide the link to Steam profile
• Default tick duration for community servers has been reverted back to 1000 ms.
• Changed StructureController.activateSafeMode so it does not work at the same tick with Creep.attackController.
• Changed error codes of StructureNuker.launchNuke: now it returns ERR_INVALID_TARGET if either source room or target room is in a Novice or Respawn Area
• Changed error codes of Room.createConstructionSite: now it returns ERR_NOT_OWNER if the room is owned or reserved by another player.
• Changed Creep.upgradeController so that controller level-up happens on the same tick when StructureController.ticksToDowngrade becomes full.
• Changed pathfinding default value of heuristicWeight from 1 to 1.2 for better performance. This affects PathFinder.search, Room.findPath, RoomPosition.findPathTo, Creep.moveTo, PowerCreep.moveTo.
• Room.name property is now immutable.
• Changed behavior or NPC invaders, now they shouldn't attack structures which are not on their way.
• Added details to the EVENT_BUILD room event.
• Engine and driver internals have been significantly reworked to make them more reliable and secure.
• Fixed structure of the EVENT_OBJECT_DESTROYED room event.
• Fixed some edge case inconsistencies in Store methods.
• Fixed respawn areas for community servers.

UPD: This update is supported in private server version 4.1.1.

The release date of this feature set: March 24, 3 PM UTC.

@smokeman this is yet to be decided.

@qzarstb In our current plan, there will be no usable account resources on the seasonal server. Seasonal server supposed to be a separate server so you won't benefit from your account at the persistent server, no matter how big or how wealthy you are there.

@demawi we're currently performing final testing before releasing this update.