The crash bug is still there on 0.11.3. But its only happening on the pirated version. After trying the demo on the quest store which also runs on 0.11.3 and seeing that it runs fine I bought the full version. And no more crashes occured.
So yeah I guess Karma is slapping me for being lazy / cheap. No idea if this is actual "piracy detection" or just a bug. The software is worth it to me so I take that slap and I am happy to have no more crashes :-)