I'm working on making my corrections to a DWG file created probably by one of the AutoDesk products for As Builts. I have a group of files where I can see the blocks on the screen, but when I go to print to PDF they disappear from the PDF.

I've gone into layers, selected all, and made sure nothing was frozen, turned off, or set to not print.

I tried exploding the blocks, but all that does is make all the Attribute Title fields appear, and though that does show up in the PDF, not a very desirable result.