formal vector
Here is the error message I get each time, and it is usually on the sandwich screen when trying to put the bananas on. I am not sure why this is, if I am missing a setting or if I am just doing things wrong.
It worked before the Item printer rng update.
I am using a Teensy 2.0 as well if that matters!
spare vale
Try setting a language. I have a feeling that we introduced that when I made @bleak jolt merge the sandwich routines. 
The old sandwich routine for eggs didn't need to read anything. But I think the generic one we switched to does.
If setting the language works, then I'll make setting a language required for all sandwich programs.