No way to unhide area

You can't enter by the right of the bottom desk ? It seems there's at least 1 tile free to walk.

 

It's also another case of this bug  

 

Edited October 29, 2018 by Gwido

I had dug a few of those tiles out. I’ll see if making a dupe stand on one of those spots helps. 

Moving on to that tile worked.  Thanks.

You have to be able to path inside I guess.  Could fix it by allowing deconstruction of the tiles around it thus someone would make it inside.

Had to move someone to a tile inside.  The spot to the right of the desk wasn't enough.

Edited October 29, 2018 by 0xFADE