### Is this a regression? - [x] Yes, this behavior used to work in the previous version ### The previous version in which this bug was not present was _No response_ ### Description  ### Reproduction StackBlitz link: Steps to reproduce: 1. 2. ### Expected Behavior render the button icon correctly ### Actual Behavior does not render the button icon correctly ### Environment - Angular: - CDK/Material: - Browser(s): - Operating System (e.g. Windows, macOS, Ubuntu):