Alexa TTS not working right with IFTTT script

I have roller shades that use IFTTT. I’ve got them integrated into my HA via scripts. The scripts work flawlessly when triggered from Lovelace; both shades raise to 40%.

When I expose the script to Alexa via NabuCasa, and say “Alexa, raise front office blinds” only one shade opens… not both. Any ideas? I’ve played with various delays but get the same result.

Script:

alias: Front Office Morning Blinds
sequence:
  - delay:
      hours: 0
      minutes: 0
      seconds: 0
      milliseconds: 250
  - service: ifttt.trigger
    data:
      event: Blinds_front_office_side
      value1: "40"
  - delay:
      hours: 0
      minutes: 0
      seconds: 0
      milliseconds: 250
  - service: ifttt.trigger
    data:
      event: Blinds_front_office_front
      value1: "40"
mode: single
icon: mdi:roller-shade

cloud:

cloud:
  alexa:
    filter:
      include_entities:
        ## Scripts
        - script.front_office_morning_blinds

    entity_config:

      script.front_office_morning_blinds:
        name: Raise Front Office Blinds