Copy thread url, paste it into an incognoto mode browser that's not logged into the instance. Compare what you see with your account settings and decide if you need to make changes or not.
If you recognize the language, use that. If it's in a language you don't recognize, you could put it into google translate and see what it shows up as.
If the language on the root post is your native language, then just set it for your account from undetermined to your native language.
Copy thread url, paste it into an incognoto mode browser that's not logged into the instance. Compare what you see with your account settings and decide if you need to make changes or not.
I think you get the same result using the colorful button, which each post and comment has:
That's in the web UI. IDK what app OP uses.
In incognito I see all the comments... I don't know what account settings I could change to make this happen. My language is set to undetermined
Try setting your language in your account to whatever the root thread language is.
How do I see that?
If you recognize the language, use that. If it's in a language you don't recognize, you could put it into google translate and see what it shows up as.
If the language on the root post is your native language, then just set it for your account from undetermined to your native language.
Then you lose all the posts that aren't set to undetermined, no?