Just tried to go to space on K2SE game after update and got this error

21247.149 Error MainLoop.cpp:1284: Exception at tick 23368368: The mod Puppy's Jetpack UI (0.1.6) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event puppy-jetpack-ui::on_nth_tick(5)
puppy-jetpack-ui/script/gui.lua:152: attempt to index local 'fuel' (a nil value)
stack traceback:
puppy-jetpack-ui/script/gui.lua:152: in function <puppy-jetpack-ui/script/gui.lua:127>

Odd, I am able to spacewalk fine in my own SE game. However it should be a simple enough fix as if you have no fuel, you don't really need a UI to tell you about fuel. I will publish a fix this afternoon probably.

This should now be resolved.

Yeah, not all fuel from K2SE is eligible for jetpack. I have Krastorio Fuel in my inventory an it doesn't work....
I guess it doesn't use any generilised "fuel" items - only exact ones.
Maybe you can add supprot for it? No pressure though - if you don't have time then don't do it.

In theory, with their latest version, I support any fuel Jetpack supports, which I think in the latest version should include K2 fuels. But before I can investigate any issues on my end, the K2-Jetpack side needs to be working, so if your K2 fuels are not working with the latest K2 and Jetpack, then I'd suggest raising that with the respective maintainers. If my side still isn't working when everything is correct on their end, then send me your exact mod list and I'll look into it further as this should be a working feature.