Docking areas on stations register as blocked

[Present_containing]

I was building onto a station last night, and i noticed that the docking areas on one side registered as blocked even though they weren't.

I do not know what causes it to be blocked, there isn't anything in the docking zone and the station is exactly symmetrical.

 

[Present_containing]

I later put on some hull blocks to try and expand the area of the station that was being loaded in, under Calbiri\'s advisement, but they did not solve the problem and the docking areas remained blocked with no explanation.