"Could not complete your request because the path is too complex"

I'm trying to render 24 characters of text with line breaks in 3D, because, as we know, 3D can be very spiffy... but I get:

"Could not complete your request because the path is too complex"

Interesting, I'm on a rocketship workstation with a fairly stealthy config. All is updated to the latest ver., 13.1.2.. Not the greatest card in the world (Quadro 2000), but it seems more than ample for this task..

It works fine with 9 characters on one line... Ok, possibly (or rather likely) I have too much text (24 characters? Line breaks? Trebuchet?), but frankly, I'd be surpised... What are the limitations here? Tips?

Thank you!