@kintala Are you using any extensions?
If so, try disabling them all, and re-enabling one at a time, two at a time, etc..
Also, check other settings (javascript, etc.) and test turning on/off:
And test from Private window, with/without VPN, Ad blocker, tracker blocker, etc.
Lastly, if nothing else works, you can try something weird like right-clicking on the YT page where the comments SHOULD show up, and looking at "inspect element".
That's getting a bit into the weeds, but it might give some clues later on.