Using FreeType 3.3.9, if you create Polgyon font from the windows Webdings.ttf at a size of 7, it will cause a crash during the tesselation of the character 'R'. This
is due to a divide by zero in the vectorizer that results in INF values that are sent to the glu Tesselator.
I cannot reproduce the bug. Since there are new FreeType releases, could you maybe try again and see whether it still crashes?
Your version of Webdings would also be useful. I tested with 1.01, 1.03 and 5.00.