Gladiator Begins (ULUS-10528)

[LunaMoo]

All styles actually use same code for exp where the cheats hooks up so I don't think it could affect only half of them, you probably just don't get any exp for those styles.

Maybe make sure you use correct equipment, shield style requires tower shields(the big rectangle ones, bucklers/round shields does not go towards "shield" style), for pugilist you have to be unarmed meaning both hands have to be completely free. You could also check to have at least 1 skill that can be used for style you want to levelup equipped and use it while fighting.
Another thing probably obvious, but your hits have to connect to reward with exp, hitting opponent's equipement doesn't count, also you aren't rewarded any exp for training either, doesn't matter how much you spend there.