Problem going from 32 to 64 bit, DirectX 11

The bug is fixed, according to the same link.
Wait for VS update.
It’s interesting whether the Release bug is fixed too…

That’s great news.
In my original situation, the release build indeed suffered from the same bug. Hopefully they solve it for all configurations.

I’ve just intalled leatest update for VS (15.7.3) and it seems that the bug is indeed fixed.

I can confirm that. Also the release mode where I had problems originally, works fine now. Sometimes Microsoft is more responsive than you think! This forum too, by the way :). Thank you all.