I just had several popups saying ‘500 error’ (Maybe there was a 504 too, since I was already reading the topic, I found, I didn’t pay attention until it showed up the 4th time). I think this happened yesterday too, so I connected the tablet to the laptop to check the browser console:
GET https://meta.discourse.org/discourse-ai/embeddings/semantic-search?q=Admin permission themes
Another 504: