Help:VE95
From TrainzOnline
This asset does not have a mesh which is visible by default
At least one mesh in each asset should include the tag auto-create 1, ordinarily this will be the default mesh. This ensures that some part of the asset will be visible when it is placed in Surveyor.
If VE95 is a warning and the asset is non-placeable, a mesh library for instance, the warning may be ignored.