Ok after hotfix, after speaking with Astrid and she leaves with the guard, the scene updates and the regular guard is stuck there with the prompt “Let me know when you’re finished with Astrid”
You need to use the transmuter to prepare the cure (it’s at the bottom of the lower room)
When I try it says something like “I don’t have any potion bottles on me” and that I need to go back to talk to…
Thanks for your quick response btw, really enjoying the game!