Thanks for looking into it, tbh I didn’t report it because I attributed it to a combination of my own blundering around in settings, and the upgrades messing with servers. The issue only occurred on Chrome iOS as far as I can tell - but it seemed like I created some quantum settings situation whereby looking at my profile settings, language would always revert to ‘0 languages’ - that is what I also got when clicking the x. And then I would not be able to see the posts and comments I knew should be visible (sometimes there was a bit of time before things disappeared/stop appearing while it caught up). I tried switching apps and finally browsers and got it (using Safari/desktop Firefox) to stay at undetermined + English as long as I didn’t look at it via Chrome. I did clear cache and history and all that.

But at that point I was a bit tired of troubleshooting it and left it alone. I will try to recreate the problem for myself on both instances and submit a bug report if it is still occurring, though!!