As far as I can tell this wasn’t an issue before the recent update, although I may have just not been noticing it. All of my recharge packs that I use for fuel in the SE:Space Trains mod are vanishing completely after my trains make a jump using the magnetic jump ramp, causing severe issues. I haven’t installed any new mods for a while, and as far as I can tell this has only been a very recent issue.

That is entirely possible, the last update merged some stuff to support the Ultracube mod. Part of it changed how train fuel is coded and tbh I didnt really look at it lmao. I'll give it another look and see what might be happening.

Thank you very much! I appreciate that!

Turns out the changes for Ultracube support accidentally moved the code that re-adds the fuel into a section that only runs if Ultracube is installed. I had this happen before when trying to add compatibility with other mods in the past lol. Should be good to go now in new version

Thank you so much! I really appreciate it :)

I was about to report this! Im playing Renai with Alien Biomes and Rampant (Nothing to do with trains), and the fuel of the train just vanish after any jump with normal ramps, making one of the trains eventually run out of fuel and making every single other train to crash behind it.
I guess there is no jumping trains until this gets fixed.... wich is 70% of the appeal of the mod im afraid >.<'

PD: It specially sucks because i've just been 3 hours designing an entire jumping train base with loads and unloads, only to start it and realize it doesnt work because of this xD. Hope you fix this soon!! :)

Have you tried with the new version 1.2.10? It works when I tested it