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Hug only routing not working

I'm trying to route on an inner layer using bubble routing in hug only mode. Clearance view is set to channel so if I see a gap it should be possible to route through. However, it's not. I cannot route between the holes in the below picture.

If I set Bubble routing to off and simply route through I don't get any DRC errors.

The holes above are 0.2 mm and are 1.0 mm apart. The track is 0.15 mm wide. The grid is 0.1 mm. I have a line to hole clearance of 0.3 mm so I should be able to route between the holes. "Unused via suppression" is, by the way, enabled so the holes belong to vias, that have no annular ring on an inner layer if the via has no connection on the layer.

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steve over 5 years ago

So the clearance view shows how much space you have to route and from the screenshot it's clear that the tracks are too thick to fit through the gaps. Try reducing the spacing clearance or reduce the track thickness.
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Fredda over 5 years ago in reply to steve

As I said, the clearance was set to "Channel" and as I have understood that view allows for routing whenever there just a slight opening. Changing to "Spacing" gives the below view.

The track to the right was routed with Bubble set to Off and there's no DRC errors.
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Fredda over 5 years ago in reply to steve

As I said, the clearance was set to "Channel" and as I have understood that view allows for routing whenever there just a slight opening. Changing to "Spacing" gives the below view.

The track to the right was routed with Bubble set to Off and there's no DRC errors.
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