Nuclear train not refueling

The train arrives at the station and then goes into a loop of "at station" -> "departing" -> "driving" states. You can see that is has completed the part of the animation where the four clamps on top of the reactor raise, and then the error happens: the reactor's 3d model flickers and there's some cracking as if a sound was about to play but was getting interrupted? Idk. Probably unrelated, but trains that I manually unstuck from the station will happily drive with their clamps up.
Of course the fuel is present in the station, and there's plenty of room for nuclear waste.
I've included a v0.8.5 (b598) save file zoomed in on the nuclear refueling station. If you recover the train currently stuck in the station, another one will arrive shortly, for your convenience.
I saw a similar report but the difference is that my trains do stop at the station.

Good repro, thanks for the report.