Love the mod! I also love the attention to fixing it that you have shown over time. I am playing on version 1.20.1 on a forge server I put up. Unfortunately after having no success getting any of the aircraft that require fuel to work on coal, I tried all the other common-sense options to no avail. Finally I discovered that the fuel list is configurable and you have to add to the "config id map" the fuels you want to use. I have tried to do so on a number of occasions and failed every time. Interestingly, blaze powder, which is the only fuel listed in the config file fuel list by default, doesn't even work on a fresh, unmodified install of the mod. What am I doing wrong? Would setting "accept to vanilla fuels" to "false", running the server, and then setting it back to "true" make a difference? I love this mod and just want to use it properly. Thanks for any help you can give.