.....mostly likely you were given an over night one, not fresh.
Sometimes the vendors kept the unsold jackfruits in the fridge, so
the next day they took it out, water condenses, that's why the
jackfruits appeared watery and got a smell. Still can eat, but
don't taste good. As for me, I would throw away or go and
exchange
i think so too.
i probably bought those unsold yesterday.
with the weather this hot its no surprise...