Ni No Kuni: Wrath of the White Witch [NPUB30932]

I'm also having issues with cutscenes causing a blackscreen, anyone know a solution to this?

There's no solution as far as I know, the only way is to skip the cutscenes before the end. It happens only on the cutscenes without the in-game graphic. You can pretty much understand when a sequence is about to end or you can skip it entirely and watch it on YouTube. It's not the best way to play but on the bright side there are not so many cutscenes you have to skip. I'm almost at the end of the game and I enjoyed it a lot even with crashes and others problem.
Definitely playable.