Unable to edit existing migration Job

Hi,

I am new to quest migrator for LN to SP.

I created a job , learning while doing using the user guide and ran it.

I went back to Database properties -> migration Jobs tab. I see the existing job but nothing happens when i select the job and click Edit. there is no error message. I click the small black arrow next to Run button and all options are disabled.

I was able to delete it. I created another new job, ran the job and now I can't edit it either. I noticed a small check box called "Locked" . Unchecking that didn't make any change.

What am i missing?