The following action stops executing at spheretoscreen statemant. The screentosphere works fine. I am never getting to 'd' trace statement. What am I doing wrong?
<action name="r">
set(h, 10);
set(v, 10);
set(x, 10);
set(y, 10);
trace('b');
screentosphere(x, y, h, v);
trace('c');
spheretoscreen(h, v, x, y);
trace('d');
</action>