I made a bottom side copper fill.

Then I drew traces on the back side, coming from the top side copper. (Top side copper trace -> via -> Draw Trace -> via -> Back to top side trace drawing.)

When I hit v in order to see the bottom side traces, I see no traces, just a huge green zone.

enter image description here

However, the amount of unrouted traces goes down.

Why does this happen? How can I see the bottom side traces?

I thought I should be able to see something like this:

enter image description here

This is coming from the 'Getting to Blinky 5.0' KiCAD tutorial series.

NOTE: I am using JLCPCB design rules, coming from this template:


EDIT: This is my layers manager: enter image description here

  • \$\begingroup\$ Do you have the solder mask layer visible? \$\endgroup\$
    – Ron Beyer
    Dec 26, 2020 at 1:29
  • \$\begingroup\$ @RonBeyer Hi! I am new to KiCAD, so i am not sure what you mean. But i updated my question with a picture of my Layers Manager. \$\endgroup\$ Dec 26, 2020 at 1:31
  • \$\begingroup\$ right click, or somewhere else and look for repour. it has to redraw the layer so to speak. \$\endgroup\$ Dec 26, 2020 at 1:41
  • \$\begingroup\$ @EdwinFairchild Thank you! I pressed 'B' because i know this does the redrawing and it worked! If you want, make a proper answer, so i can upvote and mark it as the selected answer. \$\endgroup\$ Dec 26, 2020 at 1:44

2 Answers 2


Try pressing B. That will re-draw all fill zones on the board.


Pressing b will Fill or refill the zones. Usually, I copper fill the board after the routing is done. Or you can turn off filled zone by clicking the Do not show filled area in zones button on the verticle toolbar on left.

You can also have the same effect when you run the DRC check, refilling one of the steps in the check.


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