Ansible-semaphore not running tasks in the order that they were added to queue - ansible

Question

I'm using ansible-semaphore API to handle playbook execution, when i call the start task endpoint:
start task endpoint
I need the tasks to run in the order they're added to the queue via API.
But apparently they are running in a random order:
tasks queue
In my settings I have set to only run one task at a time, which stopped it from running multiple tasks also in random order.
UI settings
In Semaphore's config.json I noticed the "concurrency_mode" setting:
{
"bolt": {
"host": "/home/ubuntu/semaphore.bolt",
},
"mysql": {
"host": "localhost",
"user": "root",
"pass": "*****",
"name": "semaphore",
"options": {}
},
"postgres": {
"host": "localhost",
"user": "postgres",
"pass": "*****",
"name": "semaphore",
"options": {}
},
"dialect": "postgres",
"port": "",
"interface": "",
"tmp_path": "/tmp/semaphore",
"cookie_hash": "*****",
"cookie_encryption": "*****",
"access_key_encryption": "*****",
"email_sender": "",
"email_host": "",
"email_port": "",
"web_host": "",
"ldap_binddn": "",
"ldap_bindpassword": "",
"ldap_server": "",
"ldap_searchdn": "",
"ldap_searchfilter": "",
"ldap_mappings": {
"dn": "",
"mail": "",
"uid": "",
"cn": ""
},
"telegram_chat": "",
"telegram_token": "",
"concurrency_mode": "",
"max_parallel_tasks": 0,
"email_alert": false,
"telegram_alert": false,
"slack_alert": false,
"ldap_enable": false,
"ldap_needtls": false
}
But the docs don't mention the options for this field:
Is it possible to run the queue in chronological order? What setting do I have to change?
I tried changing the "concurrency_mode" in the config.json to "false" with no results.
I also tried adding a few seconds delay between the tasks addition to queue, no results either.