A. 1. Check permissions: Go to Settings > Privacy > Location Services and ensure Brass has the necessary permissions to change icons. Also, check if the app has access to your home screen settings. 2. Restart your iPhone: Sometimes, a simple restart can resolve issues with icon changes not applying. Hold down the power button, slide to power off, and then turn it back on.

B. 3. Update the app: Go to the App Store, tap on your profile icon at the top right, scroll down to see if Brass has an update available. If so, tap 'Update' to install the latest version.