Exit command is not working when I connect to second sever from one server.

### Jenkins and plugins versions report

Environment

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### What Operating System are you using (both controller, and any agents involved in the problem)?

Use case:

Initially configured a server detail into the server list. Now I am able to connect to the remote server while configuring the job.
Now my requirement is from that server I need to connect another server. so, I wrote a ssh command and I am able to connect the second server successfully.
Now the problem is, build could not be able to exit, and build was continuing forever.

### Reproduction steps

Use case:

Initially configured a server detail into the server list. Now I am able to connect to the remote server while configuring the job.
Now my requirement is from that server I need to connect another server. so, I wrote a ssh command and I am able to connect the second server successfully.
Now the problem is, build could not be able to exit, and build was continuing forever.

### Expected Results

Build should get success even when I try to connect multiple remote machines

### Actual Results

Could not be able to get out of build, manually I am aborting the job.

### Anything else?

_No response_