Stuck on spinner, map is not displayed

[contrapunctus-1]

After entering a changeset ID, the spinner just keeps spinning, and the map is not displayed.

I've tested with

• Tor Browser and Fennec F-Droid on Android
• Tor Browser and Firefox on Debian GNU/Linux, the latter with a blank profile.

I've attached network and JS console logs from the desktop browsers.

changeset-map-logs.zip

[DaveF63]

Can confirm on Windows/Firefox.
Time, once again, to get ChatGPT to knock me up a personalised version.