Sprite creation fails: No rendering triangles

I’m trying to use a PNG as a sprite (see attached).

  • I drag the PNG in the content browser
  • as I create a sprite from it (right click → create sprite), I get an empty sprite.

The collision is there and I get an empty collision.

The following error message is displayed in the sprite editor:
Warning: No rendering triangles (create a new shape user the toolbar)

The shape is there, it’s just empty, the graphic won’t show.

Any ideas?

bump? Is this a bug? It certainly looks like one…