do you completely replace the existing data in the editor with the generated data? if yes, i can see two ways this could go wrong. there is no player avatar in your data at all now (the avatar should always be `SPR A`) which causes bitsy to malfunction. you also need to replace the bitsy version number in the data header to whatever the current bitsy version is (it was a bad idea to generate the header here at all, i should remove this to avoid confusing people, sorry)
i hope this helps!
That helps so much, thank you!!! ahh I changed the version number but am not familiar enough with the header info to know that the avatar data exists... before... you paint it haha. but now that I think about what's in there when you start from scratch in bitsy that makes sense. thank you v v much!