Sentence automation not working

A simple voice automation i’ve had since 2024.2 suddenly stopped working after the latest HA update. My config is:

Core 2024.3.0
Supervisor 2024.02.1
Operating System 12.0
Frontend 20240306.0

Automation trigger is:

alias: "Voice: various commands"
trigger:
  - platform: conversation
    command:
      - find (x | y | z)
    id: x location
condition: []
action:
  - choose:
      - conditions: << other conditions omitted for brevity >>
      - conditions:
          - condition: trigger
            id:
              - x location
        sequence:
          - set_conversation_response: "{{states('sensor.x_geocoded_location')}}"
mode: queued

In automation traces, I see the automation complete successfully along w/ the desired result. Yet, voice assistant prompt simply says “Done”.

Executed: March 10, 2024 at 2:19:53 PM
Result:
conversation_response: |-
 << address_not_shown_for_privacy_reasons_but_is_the_correct_one >>

Voice assistant → Debug mode shows weird nulls

Any pointers would be much appreciated!