Issue with line not connecting to shell

Hello all!

Slight issue i am having. I am printing 4 0.4mm thick squares, 1 at each corner of the bed. Rear left/right and front left are comming out perfect. Front right is having some issues, there’s tiny holes where the lines aren’t quite connecting to the shell/outer perimeter. I have been tweaking that side for a few hours, nothing seems to fix the issue, not even relelving the bed, changing the z axis, etc…

Please advise.

Photo attached.