Dialogue with the NPC is missing

What this problem is related to? (e.g. Website / Launcher / Game / etc. ):

NPC Name, Quest Name, Skill/Item Name (if relevant):
Kuno Aston

Describe the problem:
The dialogue with the NPC is missing in the “Conversation” option

List the steps to reproduce the problem (if relevant):

  1. Talk to the NPC and click “Conversation”
  2. A message appears in the chat saying that the dialogue is missing

Screenshots/Videos (if available):

Can confirm.