How do ABCs who learned Cantonese pronounce Mandarin words, given that their native language is English but their parents speak Cantonese?

Would ABCs who learned Cantonese from their parents speak Mandarin with a Cantonese accent or an American/English accent?

For example, I've heard that Cantonese speakers often have a Cantonese accent when speaking Mandarin, such as pronouncing zài as jài. Would an ABC who learned Cantonese from their parents also make this mistake when speaking mandarin?