Achievements bug

Hello. I bought the DLC of Isle of Siptah few days ago on Steam. I realised that I am not able to receive some achievements in the game eventhough I am 100% sure that I am successful at it. I tried multiple times, started a new game couple times, overwritten my saves but still did not work.

The achievements that I have issues with: Beyond the Wall of Sleep, The Outsider, The Shadow Out of Time, The Other Gods… I received any other achievements.

Thank you.