Music Assistant 2.7.3: iOS login problems and HA provider not reconnecting

Mobile Apps Home Assistant Companion for Apple
1

Setup:

• Music Assistant 2.7.3 (Container install, host mode)
• Home Assistant 2026.1.1
• Accessing MA via HA iOS app and Safari on iOS
• No container crashes or restarts

Issues:

  1. HA iOS app: MA credentials never persist - every load shows the MA login screen, no session retention.
  2. HA iOS app: “Sign in with Home Assistant” always fails with “Invalid redirect URI.” Internal URL: http://server ip:8123/
  3. Safari + HA iOS app: After reconnecting or app switching, MA loads but playback fails with “Please call connect first” until the HA provider is manually reloaded in MA settings.

Info: Music assistant tab in ha lovelace via windows loads, authenticates, plays first time without fail.

Any guidance on how to overcome these issues appreciated. Have I set something up wrong since updating container to 2.7.3?