When importing a SES file from freerouter, easy eda writes 3 traces, and then stops working. when I try to import the SES file again, it gives the warning "<span class="colour" style="color: rgb(51, 51, 51);">Cannot start again before previous activity is stopped".  </span> <span class="colour" style="color: rgb(51, 51, 51);">I am unable to proceed past this, and really would not like to route this board by hand as I'm happy with what autorouter has done.</span><br> <br> <span class="colour" style="color: rgb(51, 51, 51);">Is there any way to see why it fails to route the entire board?</span><br> <br> <span class="colour" style="color: rgb(51, 51, 51);">Thanks</span>