I am having a similar issue here. I have a large scale drawing, I try to export a section of it using a smaller page size. The export then comes up totally blank. When I export from the sent size, then create a new file, and resize the PDF, the same thing happens. It seems to be in the page size function? This happens still after I Rest Preferences, whether I use Current View, All Pages, etc.
Formerly I could take a 36x44 drawing, make my page size say 8.5x11, export or print what part of the sheet I laid it under and go from there. Somehow that isn't working any more....
