Summary: Phoenix Theme does not show the 'Current User' label on the Studio Attribute properties page. Selecting the option functionally works as expected. This is a display issue. If you select the 2nd radio button (where there is no label shown) and save the attribute properties, it works as expected and sets the Default to 'Current User' and now the 2nd radio button has a label.
Steps to Reproduce:
Expected Results: The 2nd radio button should display the label 'Current User'.
Actual Results: The 2nd radio button does not display any label.
Clarity 16.4.2
DE190822
In Clarity 16.4.2 a new enhancement is introduced to allow the administrator to set a Studio Default value on a Custom Single-Value Lookup Attribute where the lookup is defined as a Dynamic Query Lookup associated with either the 'User' or 'Resource' object.
DE190822 In review with engineering.
Workaround: No functional impact. Selecting and saving the 2nd radio button will set the default to the 'Current User' macro and the label will appear. Alternatively, the administrator temporarily use a different UI Theme to manage the default properties for custom single-value User or Resource lookup attributes.