I left lights on in my materia overnight. no prblem - jump start and off I go.
1km later I stall the car, then I cant ever jump start again!
I buy a new battery - same thing - starter engine sounds normal but engine wont take - as if no fuel - or immobilizer stopping it.
i don`t know too much about this particular car, but you could have a fuel pump relay somewhere on board.or like you say, immobilizer problem when the battery was changed. the immobilizer will be a problem for you if you don`t have the original paperwork, or just remove it.