Not able tp add parameters after using dqaxc query in Powerbi report builder

[EBJS]

Hi All,
I am stuck at a specific portion of Peginated PowerBI report builder. We have dataverse as source and I am fetching 3 tables from dataverse. After that I built relationship to fetch necessary data in PowerBI. Created report which comes up with limited necessary data.

Now, I am uploading PowerBI report and dataset to the PowerBI workspace and utilizing this powerbi dataset to create peginated reports.

Issue 1- Joins which we created in PowerBI are not showing up in peginated report builder.
To solve this we are using DAX query from Powerbi report into peginated report builder to limit the data.

Issue 2- While using DAX query, we are trying to add Parameters in Peginated report builder which is further on not filtering data.
This issue is critical and need immediate assistance.

Please let me know if anyone can suggest the best way forward.