Selected Charger Icon disappears, HTTP2 errors

When clicking on a charger the charger details pops up but the icon of the charger disappears.
This only occurs on Linux (Debian) on Firefox 133.0.3 and Chromium 131.0.6778.204

Debug console shows a couple of 400 and 404 errors on HTTP2.0 requests with cryptic URLs. Not sure if this is related

There is also a 404 error while trying to fetch fr_FR.json translation.