Role-playing dimensions are a popular business requirement but yet challenging to implement in Power BI (and Tabular) due to a long-standing limitation that two tables can’t be joined multiple times with active relationships. Declarative relationships are both a blessing and a curse and, in this case, we are confronted with their limitations. Had Power BI allowed multiple relationships, the user must be prompted which path to take. Interestingly, a long time ago Microsoft considered a user interface for the prompting but dropped the idea for unknown reasons.
Given the existing technology limitations, you have two implementation choices for implementing subsequent role-playing dimensions: duplicating the dimension table (either in DW or semantic model) or denormalizing the dimension fields into the fact table. The following table presents pros and cons of each option:
Click through for that table, as well as some thoughts on viable approaches, including an edge case.