System information

SolveSpace version: 3.0~13695be0
Operating system: Gentoo Linux

Expected behavior

The contour gets filled in

Actual behavior

This happens:

Additionally, extruding the shape creates naked edges at the points where that same circle touches its neighbours:

All of this is accompanied by the same error that whitequark pointed out in #296:

couldn't find an ear! fail

however, unlike #296, enabling 'force NURB surfaces to triangle mesh' doesn't fix the issue in either case.

Additional information

The file in question: tangent-circles-break-contour-fill.zip