Found another bug. If for example LEU-235 is processing and the fuelslot is empty (so the last of the stack is currently processing) and you fill the slot with an other fuel (f.e. LEU-233) and the process of the LEU-235 ends, it switches to the next fuel (LEU-233) but the arrow shows a quarter green. Don't know if the process time jumps to the same state or if it's only a displaybug.

Hope you understand what i mean ;)

I think I've fixed this but I will do a bit more testing to be sure :)

Yep, defo sorted!