@matigo I looked at this thread: https://10centuries.org/post/16352 via the anchor button on Android and it showed no replies, so I looked at it via the speech bubble button and it showed the full conversation thread twice (repeated at the bottom). So then I look at it on the iPad—via the anchor it shows one reply and via the bubble it shows the thread perfectly.
But just now I had another look on Android and it's showing one reply via each method. So threads are currently all over the place and changing over time too. Maybe you know this already but I thought I'd describe what I'm seeing in case there's something new.