v0.18 Widows 10 64-bit.
I've done everything perfectly, in agreement with the tutorial. Here he creates two helping lines, starting as crossed. He touches the two lower red points on the ends of the line and the center point, as he does they each turn green, Then he grabs the right one with the pointer and pulls it to the center line when he does, the lines appear to snap to the center line, When I do this and use the angle tool to constrain the angle between to 360/24* = 15*, the two lines blow apart, obviously they didn't snap in his case they stay together and show a dimension of 15*.
If I can't get the lines to snap to the center line I will not be able to finish the tutorial. Can somebody please provide some help here?