The errors are uncatchable errors from fetching the Nip05 verification. Some hosts are blocking null CORS requests from webapps so the fetches fail. Unfortunately not much I can do about that. They should be allowing null CORS access to the nostr.json file if they want to be a Nip05 host. I'll look into the note that won't load.
Discussion
Here you go. It still happens. It's not just one post. If I refresh the page I can open one of two conversations and then it starts spinning again. Let me know if there is a secret debug flag that I can enable and provide you some logs.
Pretty much any note. But here is an example - note19cgkdmpj4e40y3k7c5sul2ur535l7unj7sll8d478j2y52k6ydxsyw25hp