I made an April 2025 cash reservation yesterday morning and noticed today it wasn't appearing on my list of Upcoming Trips, neither on the website nor in the app. I did receive the email confirmation immediately after I booked.

I tried looking up the reservation on the website, but the feature kept glitching, and no results would return.

Tried looking up the reservation in the app and success! It now appears on my list of upcoming trips in both the app and on the website.