[0.17.66] Minimap sometimes doesn't show Walls

[Yokmp]

0.17.66 Zip-Package

I've built a small Outpost on my way to a remote copper field.
Saved my game yesterday; reloaded today and continued to work on it by extending the wall to the north to some cliffs.
As you can see on the image below the center part of the newly built Wall doesn't show up on he Map. This maybe happened before but I only saw it here.

I know that there is limited space an a minimap but something so essential like a Wall should have a higher priority. Especially when there is nothing around it.

Screenshot:

[posila]

Thanks for the report.
It is problem of scaling of the minimap and it always was like this in Factorio.
It's not something that should block 0.17 stable, so I am moving it to Minor issues