rear left door ajar problem is back

[Hellz]

well about a month ago i ripped apart my rear door and reseated all teh conenctions, and the problem went away. well, i spoke too soon.

this morning the problem is back. once again i ripped things apart and reseated everything, but this time the problem is still there.

any advice from anyone?

not really sure where to start, as im not sure if it is the door latch or something else causing the issue.