So I saw these update notes related to SU4 about bespoke airports and scenery updates. It included this section on POIs from WU12, New Zealand.
Since SU16 should be using this same ‘world’ and scenery now, I had a brief moment of hope that our CTD issue from this thread might now be fixed. I started up FS2020, installed a detected update (probably just an AIRAC refresh) and updated my FS2020 graphic settings to be back on DX12 (Beta) mode. I then restarted FS2020, and loaded up a flight at NZTL.
And got an almost instant CTD.
I started up FS2020 again. This time I deleted and refreshed the rolling cache, and then restarted FS2020 again for good measure.
But it was not to be. This NZ-South-Island-DirectX-12-with-POI-installed CTD is still with us. Here’s hoping it gets looked at with SU16.1.