Has anybody gotten this? Any hints would be appreciated thanks!

I just started the game but I can't seem to interact with any door of the first area outside of the mansion. The main door says 'Knock' but if I click my left mouse button nothing happens. Also other typical buttons like 'Enter' or 'CTRL' do not work. It just seems to not interact at all. However, jumping, 'Tab' for the item menu and 'ESC' for the main menu work well. Regardless of this bug I would like to see a controls screen where I can see all possible interactions just to be sure I'm not missing so...

Moin, erstmal großes Lob für dieses mega atmosphärische Spiel. Ich hoffe, dass das Spiel noch wesentlich mehr Aufmerksamkeit bekommt, die es wirklich verdient hätte. Könntet ihr kurz sagen, ob das im Titel erwähnte Phänomen so beabsichtigt ist. Ich muss sagen, dass dies gelegentlich etwas ablenkt....

Any possibility of achievement descriptions as a hint as to how they can be unlocked? Really enjoyed the game so far!

I ended up in the basement while searching for the valve for the boiler. Can someone please tell me where to find the valve? Also, I'm locked in the basement and I'm not sure what to do with the artifact.