SimBrief flight plan makes a weird triangle at departure

Hi there, sorry if this is the wrong section! I’m looking for some rookie help with SimBrief. I have created a flight plan from KSEA to KDEN and loaded it into MSFS24 successfully. But the flight path it shows on the world map is very strange:


I expected to see the blue line connect from my departure runway (in the picture) to my destination runway, lined up with both. But instead, it leads me from my departure runway in a triangle path back to the end of the runway and a completely separate line then leads from the airport center to the destination. At the destination, the blue line also just ends at the airport center instead of lining up with a runway.

I am a bloody beginner in both simbrief and with aviation and simulators in general, so I would appreciate some beginner-friendly help on what I am missing and what I need to set up to get a continuous flight plan. Thank you!

If you post your full route it may be easier to give a definitive answer.

I suspect your first waypoint is the Seattle SEA VOR, this would lead to what you are seeing as following departure from the runway you would indeed turn back on yourself. In some instances departure routes are constructed in such a way.