I have the exact same problem with TurboTax Home & Business for Mac. Over the years it has always been hit or miss, but after a couple of tries, it would save to pdf. Now, it is just print, calculating, force quit or print, ding, force quit.
Luckily, I do not need to produce a copy of my return as proof of anything. However, it does not change the fact that I want a saved copy of all the returns filed.
