When loading this mod without BZ Tin I get the error
Failed to load mods: Error in assignID: recipe with name 'indium-pcb-solder' does not exist.
Source: indium-pcb-solder (technology).
I suspect this has to do with BZ Tin somehow because I turned that mod off for testing purposes. But perhaps also could be an issue between this mod and Bismuth, which adds its own PCB solder.