Text (label) background did not render in PDF

[yes_and_no]

Guys, my first time encounteref this. Label for piping look ok on RV view, as attached. In print preview they lost the intended opaque background, same result in PDF outputs.

How can I fix this ? Thanks.

Will this be "bring to front" issue ?

 

 

[barthbradley]

Change the View Detail Level help?  Hidden vs Wireframe?