I can't see my any posts or comments previous to this account getting one year old. Either from the app or the web.
Another weird thing is that I can only see comments on to my new posts in the inbox, if I browse into the post I can only see my replies, as replies to nothing if I use voyager app, through the web I the comments section is empty even though it says there's comments.
PD: right now it says there are three comments here, but I can't see them. I replied to one of them, so there's one the haven't reached my inbox.
Edit: When I look into the comments sections, half of the comments are missing.
Update: it turns out that I managed to deselect all languages except undefined. That hid all my activity and a lot more stuff I did not notice.
I just noticed this post of yours from 18h ago so I guess that's related.
Like I said I don't really have any kind of special access here except suggest maybe to try to check from a different browser or clear cache, or different application, in the event the problem is local, related to some software you are using and not a problem with the account.
I'm using now my alt on .world.
I tried the voyager app, the browser on my phone and the browser on my computer, all show the same behaviour.
From here I can see all my posts and comments to my posts, but from the other account it's completely empty