Output layer of discrete graphics vs depth on fence diagrams?

I typically output my fence diagrams to a dgn and then import them into Microstation for editing/printing. I've got my layers setup in the REPORT DESIGN for my fence and have the "retain layering" option ticked in the Report Properties. When I output my fence, the layering is retained for graphic columns, text vs depth, and lines vs depth entities; however, the layering is NOT retained for my discrete graphics vs depth. I'm using WTLEV1 and WTLEV2 to indicate measured initial and static groundwater but they're always printed on layer 0. Is there a fix?