I've finally sorted out the whole disappearing act the engine was doing!
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Except now when click on the engine to drive it, the game crashes, along with other issues

The first issue is the fact that the couplers seem a bit "off" as well as a gigantic gap in between two coupled engines, as can be seen in the photo above. The next one is that when used as ai in a scenario, it accelerates instantaneously as can be seen in the video link below:
https://youtu.be/bI9q0ClarbcI could really use some help with getting the blueprint settings worked out.
But aside from that, I've gotten that much closer to this actually getting finished.
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