I'd like to think I'm smart enough to figure this out. Been watching all the footage recently of players using RT+PSXT and dove right in. After following the initial steps, and reviewing the guide a few times to ensure AIG liveries are scan, I assumed was all good. I knew it would take a bit for planes to be generated in game as an initial load, so I left KLAX open and spotted from a parked location.
After a few hours (went to BBQ, eat and such), came back and still no traffic on the ground or in the air. decided to fly to Panama and see if I could see airborne traffic Had multiple "errors" - the live traffic portion shows as "0" and a number of messages that the flight "not be created by your Sim!". I want to fix this and google'd as best I could, but I must be missing something. Log below in spoiler area