Solid Hatch issue

Hi
I am trying to hatch within included polylines which are all closed.
Initial situation looks like this :


I select therefore my 3 polylines and launch Hatch.
When I hatch with solid I get the following erroneous output:

When I hatch with a pattern like ansi31 in this example , it seems to work fine:

I believe there is a bug with the solid hatching.

Thanks for feedback

Solid hatch works with a different math model internally, and is not as reliable as the normal hatch.
Avoid to hatch a looped shape, instead break it up as shown here, with the joining line double, in reality of course lying upon the other. If the seam lines are a problem, you can put the shape on an extra auxiliary layer and switch that unvisible later.
Also hatch the triangle in an extra step.