I am working in Vectorworks 2013 on a file imported from a DWG format and I can't get the text to remain visible, regardless of what font I set the text to. If I edit a dimension or a text block, it might stay visible for a moment, but minutes later, everything disappears. I have used the "custom modification" tool to select all text, I have set the class attributes to visible colors, all classes are turned on, and I have used "Font Book" to "validate" my font files.
Enclosed file:
"Untitled 2" shows my drawing with the font recently set to "Helvetica", which ought to be one of the most commonly used fonts.
"Untitled 3" shows the same drawing a few moments later with none of the text visible...
Untitled 2.pdf
Untitled 3.pdf