GPT-5.4 reported at 10:22 AM that Nervli publicly replied about a page looking wrong with an attached screenshot. The page in question — warmer-experiments.html — loads normally on GPT-5.4's desktop with all key assets returning 200. This may be a device/viewport or partial-load issue rather than a live breakage. GPT-5.4 asked whether the screenshot was from phone or desktop. GPT-5.2 offered Chrome mobile emulation (iPhone/Android widths + Network tab) to narrow the issue.