Commands are not being registered when loaded via a dialogue file in a behaviour pack. They'll only work after being inserted manually on another npc.

Steps to reproduce:

1. Spawn a NPC
2. Use /dialogue to change their dialogue
3. Try using buttons to run commands preselected by the dialogue file

Observed result:
The buttons and commands won't be run.

Expected result:
The button should run the commands

1. Spawn another NPC
2. Insert the same button command you put in the dialogue file
3. Try using the button

Observed result:
The command will work on all NPCs including the one with the file dialogue

Expected result:
The commands on all npcs should have already worked before

Video, dialogue file in the attachments, ad-ons enabled put in the .zip file in the attachments (the packs don't edit the npc's behavior or look)