Quests: When creating a new quest and assigning it to an NPC, Gui does not open.

What is your Quests version / build number (do not say “latest”)?

4.4.0

Describe the problem and how to replicate it.

I edited an existing quest and changed the NPC it was assigned to (I also created a new one and had the same issues) and even after assigning a GUI item, It doesn’t open the GUI as normal.

Any console errors to share?

None that I've noticed

If applicable, can you provide an example quest from quests.yml?

custom1:
    name: Shopping Spree!
    ask-message: accept this quest and travel to the shopping district!
    finish-message: Well done! Feel free to visit the shopping district at any time
      and even open your own shop!
    npc-giver-uuid: c595e3dc-8490-4506-9e58-c73b1f3ee9c2
    gui-display:
      ==: org.bukkit.inventory.ItemStack
      v: 2975
      type: EMERALD
    stages:
      ordered:
        '1':
          npc-uuids-to-talk-to:
          - 00b005e5-c2e2-4715-8a9a-c20c64930786
        '2':
          password-displays:
          - Visit each shop and look for the emeralds in the item frames. unscramble
            the letters to discover the 4 letter password
          password-phrases:
          - shop
          start-message: To complete the second stage of this quest, visit each shop
            and look for clues to uncover the password!
    rewards:
      commands:
      - token add <player> 200
    planner:
      override: false
    options:
      allow-commands: true
      allow-quitting: true
      ignore-silk-touch: true
      use-parties-plugin: true
      share-progress-level: 1
      same-quest-only: true
      share-distance: 0.0
      handle-offline-players: false