A setting works sometimes and not others

Before assuming it is intermittent, check whether two different paths are producing what looks like one feature, because the one that works is usually what let the broken one survive.

A real example, found on 2026-09-27: a texture you imported appeared on a poster and a built-in texture on the same design did not. It read as flaky. It was not — an uploaded texture is composited outside the design renderer entirely, and the renderer had never applied procedural texture at all. One feature in your head, two code paths in the product, and the working one masked the missing one for as long as anybody only tried the working one.

Worth the habit generally: if something works by one route and not another, that is a stronger clue than if it failed both ways.