Right. It crashes while trying to load.
I asked around with some other developers and it seems there is a likely explanation for it related to loading too many resources up front and exceeding a time limit. The reason why this only occurs on some Playdates might be because they somehow load files slower than usual (maybe having almost full storage makes a difference?).
Anyway, the underlying problem should be easily fixable by changing the way stuff is loaded. I'll will implement that and upload a new version. I'll let you and James Gameboy know when that's ready. Hopefully it'll fix the problem!