Good morning mate, it's a pleasure to help.
Please don't bother with the next-gen part: I tested on AOS4 just for the sake of it, but your game deserves to be played on original hardware (if available) as it was meant to be.
Secondly, on my A1200 it crashes at different stages: sometimes after selecting a new game, others after navigating a few locations. It also crashed after the splash screen once, but I don't think there's anything wrong with the code itself. My A1200 is a stock unit (68020), the only expansion being an A1208 V3 8MB FastRAM board by Amigastore.eu. That expansion has been giving me trouble almost since the start, but again, it might be because the A1200 wasn't used for a long time and, even though recently recapped, it needs some polishing against the oxide. Time permitting, I'll try to run the game without it and see how it goes.
Finally, you may be right about the outdated WinUAE version of Amigaforever. I'll try WinUAE if I can, but I'd rather enjoy the experience of the real thing :-).
PS: did you get the TF1230 from Amigastore? I am considering buying one, but I first need to confirm there's nothing wrong with my A1200's motherboard.
PPS: whenever you have time, I'd like to know more about the developing process of NeonNoir. I coded two games for high-end Amigas ("The Secret of Middle City" and "CyberSphere"), but I'd really love to finally develop something for the classics.
Cheers
Gianluca