Added 38 minutes later
No, it works. The tasks already added to the map or the texts from the markers work. Maybe it just doesn't work on the dolmen? It started working; I changed it to a Sylvan tree, and it worked, but now, after reading the text, I can't access the hero, and another in-game text (for example: your hero can no longer move this turn, the spell has been learned) starts displaying 5-10 seconds after the initial text. In short, I'm truly a genius if such simple commands cause bugs in the game -_-