Share Extension not appearing on rail for some users with internal build but works on TestFlight

Noticing some devices (iOS 14.7.1) have found that the share extension is not appearing on internal preview builds but does appear on builds from TestFlight

  • bare or managed workflow: Bare workflow
  • eas-cli version: 5.3.2

The deployment target is set for the previous version & seems unlikely to be the issue as the same build works when also built via EAS and installed via TestFlight.