Brick & Portal app for iOS: Twitter account creation does not work

iOS 13.6
Brick & Portal app for iOS (version 1.3)
Date: 07/23/20

Description:

Minor problem with the Brick & Portal app for iOS. The Twitter icon for account creation does not work:

In short, the user can't use their Twitter credentials to create an account. Selecting the Twitter icon doesn't bring up the Twitter Oauth.

Steps to Reproduce:

1. Download and launch the app
2. Select the Twitter icon under "Sign up with..."

Result: The Twitter icon doesn't work for account creation - does not activate the Twitter Oauth

Expected: The Twitter icon should lead to account creation