Lovelace button stop working

Configuration
1

After update to 86.4 my button in horizontal stack stop working.

- title: kids
panel: true
cards:
  - type: vertical-stack
    cards:
      - type: horizontal-stack
        cards:
          - type: entity-button
            entity: switch.sonoff
            name: "main light"
            tap_action: toggle
            icon: mdi:lightbulb-on-outline
2

Solved:
tap syntax was changed:

- title: kids
panel: true
cards:
  - type: vertical-stack
    cards:
      - type: horizontal-stack
        cards:
          - type: entity-button
            entity: switch.sonoff
            name: "main light"
            tap_action: 
              action: toggle
3

Had same issue. They mentioned it in the release notes.