The Biden administration’s new migration app isn’t running on all cylinders:

Hours before sunrise, migrants at one of Mexico’s largest shelters wake up and go online, hoping to secure an appointment to try to seek asylum in the U.S. The daily ritual resembles a race for concert tickets when online sales begin for a major act, as about 100 people glide their thumbs over phone screens.
New appointments are available each day at 6 a.m., but migrants find themselves stymied by error messages from the U.S. government’s CBPOne mobile app that’s been overloaded since the Biden administration introduced it Jan. 12.
Many can’t log in; others are able to enter their information and select a date, only to have the screen freeze at final confirmation. Some get a message saying they must be near a U.S. crossing, despite being in Mexico’s largest border city.

And in an unexpected wrinkle, it is biased against dark-skinned applicants:

Some migrants, particularly with darker skin, say the app is rejecting required photos, blocking or delaying applications. CBP says it is aware of some technical issues, especially when new appointments are made available, but that users’ phones may also contribute. It says a live photo is required for each login as a security measure.