I downloaded 3.48 from Play Store, and had instant failure - return to stock needed.
I then went to Aurora and it immediately advised of an update for Starling, and updated me to
Version 3.49.1.98645
com.starlingbank.android
versionCode 98645
targetSdk 34
minSdk 23
Installed: 6 May 2024; 15:13
Updated: 16 May 2024; 13:07
Immediately able to go through security to get to my account, and my phone was authorised within 15 mins.