Steps to Reproduce
Context of the situation :
1. Make a new character.
2. Visit Alphonse's shop and have a first conversation with him
3. Defeat Mother Treek for the first time
4. Skip Nocturne Grove and go instantly to Blisterbane Bog
5. Find his shop again and talk with him for the second time
A developer has marked this issue as fixed. This means that the issue has been addressed in the current development build and will likely be in the next update.