Dev Team,
Some mods have come out for Spidertron .. one being `https://mods.factorio.com/mod/Insectitron` .. that allows the modified spidertron to need a fuel source.
From control.lua when looking at these entities you can see that the burner property exists .. entity.burner .. however the .. entity.burner.inventory .. property is reporting as invalid. Even though there are 2x stacks of solid fuel placed into the inventory slots.
If this is a valid bug with the Spidertron entity I suspect you will also need to apply the same fix to the property .. entity.burner.burnt_result_inventory.
Spidertron burner.inventory showing as invalid
Re: Spidertron burner.inventory showing as invalid
I just found the same thing. Krastorio 2 also adds burner fuel to Spidertrons.
My mods: Multiple Unit Train Control, Smart Artillery Wagons
Maintainer of Vehicle Wagon 2, Cargo Ships, Honk
Maintainer of Vehicle Wagon 2, Cargo Ships, Honk