I talked to the victim and searched everywhere. There are no connections to make, and my only task is 'to find Arsene Lupin'. I cannot talk to anybody (he only remarks that he has to find Lupin). Did I miss something?

I noticed there is the square circle triangle and octagon/hexagonal signs. I tried to compare it to the meal shapes but no luck...anyone help?

I'm standing before tomb in the church and have to push some letters to open the entrance. What explains me which letters I have to push?

Accidentally clicked on "new game" which started a new game without confirmation, and now all my previous progress is gone. Hooray for no custom saves or loading previous saves. I wish I could refund this crap.

I have played through most of the game with minimal issues, but after completing a Conversation Challenge in Herlock Sholmes Part 1, the green info box about "choose your answers carefully" got stuck on my screen. The pop-up stays onscreen during the flashback/narrator cutscenes around the fireplace. Entering my journal doesn't remove the pop-up, and pausing only makes the pop-up disappear while the game is paused....