Field filter from a question containing locked parameter

Hi,

I have a dashboard with a locked parameter called user_id. The metrics on the dashboard are correctly scoped to that user_id, and return the expected results.

However, I also have a field filter on the dashboard that uses the “From another model or question” option. This filter is connected to a saved question that includes the same user_id parameter. The issue is that the filter dropdown doesn't load any results.

Looking at the server logs, I’m seeing a 500 error being thrown, but I haven’t been able to locate the full stack trace yet.

Could this setup—where a field filter references a question that itself depends on a locked dashboard parameter—be unsupported? Or is there a known limitation or workaround for this pattern?

To add, I have not been able to validate if the same happens within the iframe when a jwt is supplied containing the locked parameter value. So, this can maybe just be a backend UI issue?