Trimed lines disappearing
I am working on a seamless pattern. I have got to the stage of the clipping mask which I believe I have correctly applied. However when I go to trim the "hidden" items around the edges of the clipping mask, so I don't end up with a white border around my swatch, a number of lines disappear when I use the trim function.
Can anyone help explain why this is happening and how I can go about successfully trimming the "hidden" elements to allow me to create my seamless pattern?
First image shows part of my image post clipping mask, pre trim. Second image shows same part of my image post clipping mask and post trim.
Thanks in advance
