Now I'm getting a really cursed bug here. I uploaded a correct circuit diagram but it likely triggers a bug in librsvg used by Mediawiki so the circuit renders incorrectly, the capacitor just disappears. And it's only triggered by some image sizes, including the default one but not the preview one... :blobcatfacepalm:
The possible failure modes in computing is proportional to your knowledge...
It turns out that SVG rendering is so buggy that Wikipedia even has a special SVG help desk. :woozy_baa: https://en.wikipedia.org/wiki/Wikipedia:SVG_help