From 2022-12-31 10:45 UTC to at least 17:00 UTC the same day, this Wiki, as well as the INTL wiki from where we include the current theme had issues with serving the stylesheet. The problem seems to have resolved since then, but problems that go away on their own also come back on their own.
There have been no changes on our end (nor on INTL's end) that could have caused this, and the issue was global (as checked through VPNs and Tor nodes) and cross-browser (I used LibreWolf, Ungoogled Chromium and Tor Browser). The servings failed about 80% of the time, and the periods when it worked were time-correlated (i.e. there were brief windows when it would work everywhere, just to fall back to borked soon after).
I have diff checked the HTML servings from tabs where it worked vs those when it didn't and saw no relevant changes except a reordering of the <script> tags in the <head> element, though no changes in content. I tried resolving all the included URLs from the <style> tags end could load each of them manually.
I have absolutely no idea what caused this, but if I had to guess, it would be some problem with cloudfront (yet Amazon lists no problems in the relevant time frame).
If this returns, we might be able to work around it by simple including an [[moudle CSS]] with a copy of our theme in the nav elements, so it is loaded individually to each page. Not pretty, but it should work.
