That platform is on Orbis, his dialog to Orbis is correct. We can try to reword the quest arrow instructions that use this npc to be less confusing.

Thanks for the screenshots. Ace's ride is correct: his "Orbis" row lands you on Orbis Station's Edelstein platform, which is the way to Lisa. The quest arrow named that platform ("Station <Edelstein Bound>") instead of the row Ace actually shows you, so it looked like he couldn't take you there. When a ride NPC's menu names the town, the arrow now uses that name, so at the Edelstein airport it reads "Ask Ace to take you to Orbis".

To re-test: with Repairing the Maple Cape tracked, go to Ace at the Edelstein Temporary Airport and read the arrow's second line.

I went back to read the actual quest and it says Orbis in the Quest Log. I was just lazy to read text and followed the tracker and got confused when I didn't see an Edelstein Station haha. I guess changing the tracker to 'Orbis' or changing Ace's text to 'Edelstein Station' would be helpful