There seems to be an issue regarding characters swapping their str/mag bases and growths when their classes get randomized. All of the gen1 characters with this issue had holy blood, but some substitute children seemed affected too. I haven't done enough testing to discern a pattern in the bug.

Settings were: No randomized growths, No randomized bases, No randomized HB growths, No randomized HW bonuses, Don't assign HB, Don't retain number of skills;
Randomize skills (0 skills=Low, 1 skill=Normal, 2 skills=Very high, 3 skills Very low);
Skills's Weight:
-Very low=Astra, Paragon, Wrath
-Low=Bargain, Charm, Luna
-Normal=Renewal, Sol, Vantage
-High=Charge, Miracle, Nihil
-Very High=Adept, Critical
Pursuit chance=50%
Randomize classes (Include lords, Include thieves, Don't include dancers, Include Julia, Don't retain healers, Don't retain horseback units), Children set to "Randomize", Randomize HB;
Shop items set to "Adjust to party", Adjust conversation gifts, Adjust str/mag growths and bases, Weapons set to "Strict sidegrade";
Randomize minions, Randomize arena, Randomize bosses, Don't randomize bosses's HB;
Promotions set to "Similar", Don't allow mount change, Allow enemy-only classes, Apply english patch, Randomize rings:
Improve enemy stats (Flat, 10%), Improve enemy equipment (10%), Don't force major HB and HW;
Seed phrase="Seliph"