Filter your list or search for the route, session, or asset that is showing errors. Right-click the asset and select .

Click the + button in the search panel to add a filter. Search by KUID: In the dropdown menu, select "KUID".

Without these identifiers, Trainz would not know which specific file to load for a particular object. 2. Why Perform a KUID Search?

The official Trainz Download Station is the first place to look. You can search by the "KUID" field directly.

If the missing asset is something minor—like a specific type of tree or a background building—you can trick Trainz into using a different asset instead.

A (Koolthingz Unique Identifier) is a unique serial number assigned to every piece of content in Trainz. This includes locomotives, rolling stock, buildings, tracks, textures, and even entire routes. Think of it as a digital barcode that allows the game to organize and locate every single asset on your hard drive and on the Download Station (DLS).

Sometimes you will see a KUID2 format, which looks like this: KUID2:User ID:Content ID:Version (e.g., KUID2:123456:78910:1 ). The final number indicates the version of the asset. Trainz automatically prioritizes the highest version number available. Step 1: Identifying Your Missing KUIDs

Replace the missing KUID number with the KUID number of your working asset.

Understanding KUID Search in Trainz: The Ultimate Guide to Finding Assets

Once imported, right-click your original broken route and select again to ensure the error has disappeared. Pro Tips for Managing KUID Errors

Before diving into search techniques, let’s break down the anatomy of a KUID.