iOS Auto Provisioning step fails with "developer portal password not provided for this build"

I haven’t changed anything since yesterday but all of my builds are currently failing with “developer portal password not provided for this build” during the iOS Auto Provisioning step.

Example: https://app.bitrise.io/build/6771eacce9f366e3#?tab=log

ios-auto-provision
version: 1.5.2

It started working again.