yes C1 4.5 had some serious start-up bugs in it for both Mac and Windows.
I thought they had addressed the most egregious ones, (it could not remember any locations in Windows 4.5, and gave warning dialogues) but I just opened 4.5.1 and closed it on my system - and after it closed, it froze everything for 3minutes.
I despair of how Phase can take so long to make this, and its not ready for prime time in major ways.
back to Pro 3.78 for me.