The buttons plugin does not insert the template completely

I use this code

 `` `button
name Create note
type note(Test name) template
action template_name
color blue
`` `

In the template with the name template_name
I have a block with the fields

---
field1: value
---
field2:: value

When I click the button in a new note with Test name, only the following is inserted

---
field1: value
---

But field2:: value is not inserted, why ?