Ignore the fact i didn't put a question mark at the end of the sentence, it was phrased as a question
And no, until someone comes back with the files as proof one way or another, or someone who knows the uprev tuning can say that the spark advance/any other tune contents can be missing, i still think my suggestion/question is what may have happened.
Read the Osirus tuning guide/instructions as to how it works, IIRC, it does suggest that what i asked is possible.