I have the same problem...or very similar. So, I do Print-> Save as PDF and it works for some layouts but in that one (also in the same document), it just makes the program closes immediately after the window with "regenarting sheet" is showed.  It doesn't freeze, just closes... I tried removed hatch, but it doesn't work.  What's more, on my friends' computers, the same thing happens (but only with my file).  What should i do? Please help...it's my semester project