Report Pages Disappear When Adding a Local Model

Hi everyone,

We’re experiencing a major issue with our Power BI reports connected via DirectQuery to our main semantic model (star schema with facts/dimensions).

When trying to add an Excel file or custom table to the reports that are connected via DirectQuery to this main model, Power BI prompts us to "Add a local model", which usually worked fine. However, now:

1. Power BI first asks us to reselect dimensions/facts from the existing model we are connected to via DirectQuery.
2. After selecting them (or even just one dimension), the entire theme and all report pages disappear.
3. If we try to proceed without selecting anything, we can't move to the next step.

Has anyone else encountered this or found a solution?

Thanks!