I know historically one ways from Asia -> USA are more expensive than one ways from USA -> Asia. However, I'm looking at TPE -> SFO on 01/04/2025 and everything is zero'd out, even full fare J. Only Y9/YN9/B9 is available. Can someone enlighten me and explain why? I'm assuming it's not a bug and that this is done deliberately to stop people from booking one ways departing TPE to SFO nonstop.