I posted in the issue to say that I can no longer reproduce the flickering in my small repro, but that it does still seem to happen in the main project:
I don’t really know what the conditions are and why it’s just happening in the main project. I do think the “1024 x 2048” displayed in the console is too small. I think even when I set it to 2048x2048 manually I sometimes saw flickering.