Compare please two SMath-sheets in attach
Transport-cd.sm (18,42 КиБ) скачан 350 раз(а). - money cd
Transport-error.sm (18,36 КиБ) скачан 351 раз(а). - money - ¤
Is it an error?

I think the issue is that the you are trying to use the Boolean exclusive or as unit symbol, and this conflicts in some way; I think it shouldn't, as it is on the RHS of the unit symbol, still the root cause might be that.