Cannot enable public registration on dendrite server

[ReggieMarr]

Describe the bug A clear and concise description of what the bug is.

When I go to create a new user using element's web ui I'm met with "Registration Disabled on homeserver" (See attached screenshots)

I do also occasionally get the following error:

failed: [matrix.bridge.monster] (item=matrix-traefik-certs-dumper.service) => changed=false 
  ansible_loop_var: item
  item: matrix-traefik-certs-dumper.service
  msg: matrix-traefik-certs-dumper.service was not detected to be running. It's possible that there's a configurationmatrix-traefik-certs-dumper.service` and `journalctl -fu matrix-traefik-certs-dumper.service` on the server to investis a false-positive. You can consider raising the value of the `devture_systemd_service_manager_up_verification_delayice_manager/defaults/main.yml` for more details about that.

To Reproduce My vars.yml file looks like this:

# The bare domain name which represents your Matrix identity.
# Matrix user ids for your server will be of the form (`@user:<matrix-domain>`).
#
# Note: this playbook does not touch the server referenced here.
# Installation happens on another server ("matrix.<matrix-domain>").
#
# If you've deployed using the wrong domain, you'll have to run the Uninstalling step,
# because you can't change the Domain after deployment.
#
# Example value: example.com
matrix_domain: bridge.monster

# This is something which is provided to Let's Encrypt when retrieving SSL certificates for domains.
#
# In case SSL renewal fails at some point, you'll also get an email notification there.
#
# If you decide to use another method for managing SSL certifites (different than the default Let's Encrypt),
# you won't be required to define this variable (see `docs/configuring-playbook-ssl-certificates.md`).
#
# Example value: someone@example.com
matrix_ssl_lets_encrypt_support_email: 'reginald.t.marr@gmail.com'

# A shared secret (between Coturn and Synapse) used for authentication.
# You can put any string here, but generating a strong one is preferred (e.g. `pwgen -s 64 1`).
matrix_coturn_turn_static_auth_secret: 'SECRET'

matrix_homeserver_implementation: dendrite
matrix_homeserver_generic_secret_key: "SECRET"
# #Enabled public registration
matrix_registration_enabled: true
matrix_registration_admin_secret: "SECRET"
matrix_dendrite_enable_registration: true
matrix_client_element_registration_enabled: true
matrix_dendrite_client_api_enable_registration_captcha: true
matrix_dendrite_client_api_registration_shared_secret: 'SECRET'
matrix_dendrite_client_api_recaptcha_public_key: 'SECRET'
matrix_dendrite_client_api_recaptcha_private_key: 'SECRET'
matrix_dendrite_client_api_recaptcha_siteverify_api: 'https://www.google.com/recaptcha/api/siteverify'

matrix_synapse_enable_registration: true
devture_systemd_service_manager_up_verification_delay_seconds: 20

# A secret used to protect access keys issued by the server.
# You can put any string here, but generating a strong one is preferred (e.g. `pwgen -s 64 1`).
# matrix_synapse_macaroon_secret_key: 'SECRET'
# matrix_homeserver_generic_secret_key: "{{ matrix_synapse_macaroon_secret_key }}"

# #Enabled public registration

# A Postgres password to use for the superuser Postgres user (called `matrix` by default).
#
# The playbook creates additional Postgres users and databases (one for each enabled service)
# using this superuser account.
devture_postgres_connection_password: 'SECRET'

matrix_mautrix_whatsapp_enabled: true

matrix_mautrix_signal_enabled: true
matrix_mautrix_signal_relaybot_enabled: true
matrix_mautrix_signal_configuration_extension_yaml: |
  bridge:
    permissions:
      '@reggiemarr:bridge.monster': admin

matrix_mx_puppet_instagram_enabled: false
matrix_mautrix_instagram_enabled: true
matrix_mautrix_instagram_configuration_extension_yaml: |
  bridge:
    permissions:
      '@reggiemarr:bridge.monster': admin

# The easy way. The specified Matrix user ID will be made an admin of all bridges
matrix_admin: "@reggiemarr:{{ matrix_domain }}"

matrix_mautrix_facebook_enabled: true

matrix_mautrix_facebook_configuration_extension_yaml: |
  bridge:
    community_template: "unofficial/facebook_{localpart}={server}"

#for federation

matrix_nginx_proxy_proxy_matrix_nginx_status_enabled: true
matrix_nginx_proxy_base_domain_serving_enabled: true

matrix_playbook_reverse_proxy_type: playbook-managed-traefik

devture_traefik_config_certificatesResolvers_acme_email: "reginald.t.marr@gmail.com"

#Discord
# matrix_mx_puppet_discord_enabled: true
# matrix_mx_puppet_discord_client_id: "SECRET"
# matrix_mx_puppet_discord_client_secret: "SECRET"

# matrix_mx_puppet_discord_configuration_extension_yaml:
#   bridge:
#     enableGroupSync: true

matrix_jitsi_enabled: true

matrix_jitsi_jicofo_auth_password: SECRET
matrix_jitsi_jvb_auth_password: SECRET
matrix_jitsi_jibri_recorder_password: SECRET
matrix_jitsi_jibri_xmpp_password: SECRET

etherpad_enabled: true

# Seems to be not working at the moment, will bring up when possible
# matrix_bot_chatgpt_enabled: true

# # # Obtain a new API key from https://platform.openai.com/account/api-keys
# matrix_bot_chatgpt_openai_api_key: 'SECRET'

# # This is the default username
# matrix_bot_chatgpt_matrix_bot_username_localpart: 'bot.chatgpt'

# # Matrix access token (from bot user above)
# # see: https://webapps.stackexchange.com/questions/131056/how-to-get-an-access-token-for-element-riot-matrix
# matrix_bot_chatgpt_matrix_access_token: 'SECRET'

matrix_mautrix_discord_enabled: true

matrix_bot_maubot_enabled: true
matrix_bot_maubot_admins:
  - bot.maubot: SECRET

Matrix Server:

• OS: Ubuntu 22.04
• Architecture: amd64

[ReggieMarr]

Turns out I was missing

matrix_dendrite_client_api_registration_disabled: false

Perhaps this should be added to the docs