I use DJI UAVs professionally. As others have stated Litchi does not support Spark and Spark does not do way points. Error comes up "Spark does not support way points" when you try to launch a mission. I lost control twice in Litchi in FPV mode, I will never use it again with Spark, use it all the time with Phantoms and Inspire 2. Even with them we lose GPS hold and mission aborts, we are trialing DJI GS Pro this week, hope it works better than Litchi.
I connected with Spark yesterday and it connected perfectly. I will do a test flight maybe tomorrow.