Blocking Messages, FaceTime, or Maps

Delete from Always Allowed - Apps in ‘Always Allowed’ can sometimes overrule Brick modes, especially in Allow Mode.
Settings > Screen Time > Always Allowed > Remove apps trying to block

Turn off App Limits from Apple ScreenTime - The phone will default to any existing Apple Screen Time limits and not let Brick work.
Settings > Screen Time > App Limits > Toggle off App Limits

Turn off App Limits from other screen time apps - Turn off any other active screen time app sessions. Brick tries to play nicely with others, but Screen Time can sometimes get confused if multiple systems run. You can turn off within apps, or remove with the instructions below.
Settings > Screen Time > Apps with Screen Time Access > Toggle Off Other Apps

Search for App in App Picker to confirm selection - Sometimes other apps and categories can interrupt app selections from saving. Search for the app having trouble in the App Picker to ensure it is clicked correctly.

Set up Shortcut - If you’re still having trouble, you can create a shortcut to block when Brick mode is activated. Note that Settings is the example, but any app can be inputted for Settings if not blocking properly.
Use this link to set up.

Restart your phone

Delete and redownload Brick

Wait ~4 hours - It can sometimes take Settings some time to kick in.