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.
/F