Really? Maybe I'm just dumb, but this:
Sounds quite contrary to what the video says:You can however have multiple trade routes that connect to a single planet so long as they all originate from different planets.
If I understand you correctly, that number should be 5 routes times the number of planets you own.when trading with another player, you may only have one trade vessel assigned per planet. So if youre trading with player A, and player A has 5 planets, you can create five trade routes, one per planet.