I can expand one additional level to the decomposition tree after my Field Parameter Field, but if I try expanding any more afterwards than I get "An error occured while rendering the report". For...
BBrak
Advocate I
Advocate IIt seems this issue still isn't solved more than 4.5 years later. The odd thing is that although I added a Field Parameter (#dimParameter - 1) to 'Explain by', Power BI added a distinct field, Sales category on top of that.