@ubi-theberry I forgot to give feedback. That was the case. I played again going through the correct order of the game and it worked fine as the Royal Fox Hunt quest was running.
Thank you.

@ubi-froggard I finally loaded an older save game and started playing over. I'll see when I get there again what happens.
BTW the game plays smoother on Windows11. Had a driver update by AMD also.
Thank you

@ubi-thrupney Thank you very much for your answer. Maybe I followed a different route. I shall check since I just updated to windows 11.
I will let you know when I do and tell you if I could proceed.
Thank you

Hello, I've found a number of bugs while playing mostly display or graphics but this time I cannot proceed and get the key in Clever Fox Tavern
since after removing the obstacle on the second floor the window which should be open is closed, blocked.