not legally married
if the father is still alive can prove with DNA.

many these kinds of cases in sabah.

Mother is bugis, ran away when he was baby.
Indonesia also don't have his mother's record. So he cannot apply to be indonesian too.

From what I read

He already proved that his father is malaysian

But Malaysian government insisted that because his father and mother not legally married. His nationality should follow the mother.

The mother basically a ghost. No legal document. No where to be found. Unsure her nationality.

Malaysia government: it bukan masalah saya. Lu stateless Lu punya hal.

Hope the judges have some common senses.