CGAL ERROR when rendering puzzle,

[kageurufu]

Preview render works, but a full render fails with the following

ERROR: CGAL error in CGAL_Nef_polyhedron3(): CGAL ERROR: assertion violation! Expr: e_below != SHalfedge_handle() File: /mxe/usr/x86_64-w64-mingw32.static.posix/include/CGAL/Nef_3/SNC_FM_decorator.h Line: 426 

OpenSCAD 2021.01, Puzzlecad r2.2

Here's a minimal file that reproduces it for me

include <puzzlecad.scad>

require_puzzlecad_version("2.0");

$burr_scale = 12;
$auto_layout = true;

burr_plate([
    [ "xxxxxxx|xxxxxxx|xx...xx|xx...xx|xx...xx|xxxxxxx|xxxxxxx",
      "x.....x|.......|.......|.......|.......|.......|x.....x",
      "x.....x|.......|.......|.......|.......|.......|x.....x",
      "x.....x|.......|.......|.......|.......|.......|x.....x",
      "x.....x|.......|.......|.......|.......|.......|x.....x",
      "x.....x|.......|.......|.......|.......|.......|x.....x",
      "xxxxxxx|xxxxxxx|xx...xx|xx...xx|xx...xx|xxxxxxx|xxxxxxx" ],
]);

[kageurufu]

No clue why it's doing this, but here's a glitch the just rendered in the preview mode