A Lando rebuild command, when run on a project with local docker tags referenced in the docker-compose file, will error out trying to pull the image - but it will Lando start fine...
e.g.
docker tag uselagoon/mariadb-drupal:latest lagoon/mariadb-drupal:latest
replace the mariadb image in the docker-compose.yml and lando rebuild to see the error
ERROR: for mariadb pull access denied for lagoon/mariadb-drupal, repository does not exist or may require 'docker login': denied: requested access to the resource is denied
It seems as if Lando is trying to pull the image direct from docker hub, as opposed to seeing it exists locally.
Given the specificity of the integration, this is most very limited in it's scope, but it does hamper local testing.