If the game was big enough and there was tons of support,
I could suspect that this could not be a bug, but rather a mystery for the fans to solve.
Yeah, I think watching game and film theory has gotten me into this thing for mysterious.
On my opinion, I think certain positions of gameplay could be affecting this.
What I’m saying is that some people might be on a certain mission in the storyline in a certain episode, and so the engines will fill themselves more or drain faster. The connection between those players and the older ones can affect the real state of what the engines are suppose to be.