Printing issues

I am a newbie.  Received a drawing. Renamed the drawing and saved to a dedicated folder.  I printed portions for the drawing and the entire drawing.   Next I copied a portion of the drawing and pasted within the same drawing for modification.  Now I cant print any portion the drawing.  Why could I print before but not now? 

2nd question

Why does the text cokes have to be changed to red or other colors before printing.  Now the text is not black.  The background is black so I can't change the text to black.  Other text print great...why does the text color require changing before printing

I am an autocad user many years ago.  New to microstion.  

Any help would be greatly appreciated.