I'm getting started with 2D Toolkit on iOS (Pro, Unity 3.5.1f2), using the latest version from the Asset Store. I have sprites showing up as expected with no problems. I also have a text mesh appearing just fine using DemoCameraFont. However, when I switch from DemoCameraFont to any other font--mine (created using GlyphDesigner) or the provided DemoFont and GradientFont, the text mesh disappears. Literally the only change is switching the droplist from DemoCameraFont to anything else. Switching back to DemoCameraFont makes the text appear again.
Creating a new font that seems to be identical to DemoCameraFont, by creating a font and dropping /TK2DROOT/tk2d_demo/democameradata/source/democamerafont onto the Bm Font property and /TK2DROOT/tk2d_demo/democameradata/source/democamerafont_00 onto the Texture property, gives the same results, so this doesn't appear to be a problem with the texture or font data.
What am I doing wrong?