gocd - Agent never doing second pipeline stage/job

i have install GOCD (Go continuous delivery) on my Ubuntu VPS with its agent (Go-Agent) on same server.

One pipeline (the 1st) have been created and it run smoothly to do any stage/job/task, there's one agent that always to do the job:

but when i try create new pipeline, i dont know why no agent wont work to 2nd pipeline. i just see message:

Not yet assigned

screenshot :

try wait up to one hour, but the agent never working for 2nd pipeline job.

Any idea ?

Thanks in advance...

There are two reasons why no agent might be assigned:

• The job specifies resources that no agent has
• The pipeline is not in the same environment (or not at all in an environment) that an agent is in.

So please double-check the pipeline's and agent's environments and the resources.

I hope this helps!