Getting "Parse" error when importing .ses file (solved)

Layout
1

Using freerouter to route my board, worked fine in the past but
I’m getting a “Parse” error when I back import the ses file in to kicad.

1440×900 224 KB

2

There is probably an error in your session file.

3

Doh!
I discovered my mistake, I had 2 resistors overlapping and sharing the same pad.