Sometimes I have tried to make some custom paths, for example letter 'A' converted to paths (Times New Roman font), and when I tried to use command Inset Path for expand the path, the program expand it but some points and their respectives curves are not in the correct direction, for that looks like deformed path of this letter.

Usually I have to launch to Freehand and this one makes the command correctly.

I don't know why. Please help me.

I put a ZIP file with a image demostrating the problem, it's a PNG fireworks source file.