Why Logic Pro X recording stops when unplugging headphones from MacBook Pro interface?

-I am using a Macbook Pro and Logic Pro X. I am using an interface.

-I was recording four tracks simultaneously.

-I had to immediately reset all the tracks (4) to begin recording again.

-For each track this incident created a second region (expectedly) with a 5 second gap of silence between each region.

Any ideas on why this might have happened and/or solutions to prevent this from occurring again?

Thanks everyone!

[Re-Titled by Moderator]