Since the last update to 3.3.1 the PSD import gave me this result.
Have a good day.
Did you check the psd layers format and extension? Can you send us the PSD file at email@example.com or firstname.lastname@example.org and we will take a look on what might cause this problem. We tried to recreate this but the importing is working great.
Also for a quick set of guidlines you can visit this page:
And last here's a checklist to see what cause errors on importing:
Customer support service by UserEcho