hi Erik right?
seems you miss a few ground textures (it gives the checkered pattern)
-Go to Content Manager, filter on [Routes & Sessions]
-Find your route and right click List Dependencies Recursively
-A new window opens, check for any faulty or missing assets
-If an asset is missing, add it from the source
-If an asset is open for edit, right click, revert to original
-If an asset is faulty, right click View Errors and Warnings
hth greetings GM