[0.17.9] Trains in blueprints don't have wheels

[Boardy]

When adding a train to a blueprint, it does not have wheels in the preview. Same goes for the wagons.

[kovarex]

Hello. We draw wheels depending on the rail attachment, and since there is non when it doesn't have rail or is in the blueprint, we just don't draw wheel. We don't consider it a big problem, as it actually is an indication of sorts.