This is exactly what is happening to me - it actually caused me to search and find this thread. I started at KLAX without a parking spot after creating a plan in LNM to fly to KFLG. In my case, it only seems to happen if I select a departure procedure. If I depart direct and select a parking space in the WM, it works as intended. But when I select a departure procedure, it inserts a wild loop before eventually returning me to my original flight plan.