Strange effect with unstructured mesh edges ON and high zoom levels

Hi everyone,

I have a strange behavior with a simple unstructured mesh loaded as poly data, with the actor’s property edges visibility ON. It displays OK, however, when I start doing high zoom levels into specific elements (triangles) it seems that the element takes the whole color of the edge…

Here is a video showing the effect: Recording #125

In this case, I used red color for the edges, but if I use a different color (i.e. black) the effect is the same, the whole element takes the edge’s color. If I turn off edge visibility it stops reproducing. Any ideas on what might be happening?

I’m using QVTKOpenGLNativeWidget and VTK 9.2.6 or around that version.

Thanks in advance.