Combine Shapes Issue

[Paul Bruneau]

Hi Everybody,

I'm having a slight issue with combining a grouped shape. I want to break-up this shape
into three separate shapes.


However, when I place a shape over the that group and select Arrange > Combine Shapes > Slice I
get what I want except for a tiny detail:


Several pesky lines where they shouldn't be. If I simply set the line-width to "none" I also lose the outline on the letter
itself. I don't want to do that.

Can I eliminate or avoid those lines that are "added" to the the new groups?