In Ant 1, Part 2, after talking to Mother Cecilia, you have:
*** Spoiler - click to reveal ***
Now head to the right and you interact with the window to let Florian know your there. He'll let us inside and we can examine the barons body.
You should have: "Now return to the Upper Abbey and interact with the window..."
The way you have it currently left me wondering where the window was.