Thanks for letting us know. The “failed to fetch more replies” message means the site’s having trouble loading additional posts, and it can sometimes happen if something’s interfering with the new way threads load. In the first instance, can you please clear your browser cache and see if that helps?
If no joy with that, please check whether you have any of these installed in your browser:
Ad blockers: AdBlock, Adblock Plus, uBlock Origin, AdGuard, AdRemover, Ultrablock, Malwarebytes Browser Guard
Privacy tools: Ghostery, Privacy Badger, Disconnect, Firefox Tracking Protection, DuckDuckGo, VeePN
If you do, try temporarily turning them off and then refresh the page to see if the replies load properly.
If you don’t use any browser extensions, it’s also worth checking whether your antivirus software (e.g. Norton, Bitdefender, Kaspersky, Sophos, Avast) has a web or tracker-blocking feature that might be interfering- try disabling that briefly and reloading the page to test.
Let us know how you get on. Thank you.