Hey!
Pretty excited to see you've already implemented the Fuel Loader feature, I was really looking forward to that (very important for my depot designs). However, switching a Cybernetic Combinator from "Fuel Loader" mode to any other mode (I checked them all) causes a crash, with error text below.
The crash also occurs when simply deconstructing the Fuel Loader combinator.
Interestingly, I noticed that when first switching the combinator to Fuel Loader mode a tickbox for "Automatic Train Allow List" is present, but when the GUI is closed and then opened again, this tickbox is absent. No idea if that's related or a separate issue.
Playing with SE + K2.
The mod Project Cybersyn (1.1.0) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event cybersyn::on_gui_selection_state_changed (ID 60)
cybersyn/scripts/main.lua:71: attempt to index local 'refueler' (a nil value)
stack traceback:
cybersyn/scripts/main.lua:71: in function 'on_refueler_broken'
cybersyn/scripts/main.lua:376: in function 'on_combinator_broken'
cybersyn/scripts/main.lua:407: in function 'combinator_update'
cybersyn/scripts/gui.lua:186: in function <cybersyn/scripts/gui.lua:125>