Missing several iPhoto project calendars after transition to photo !!!
After installing 10.10.3, i opened the new Photos app which imported my main iPhoto library. Problem is that I'm missing several project calendars from he last few years, specifically, the calendars I made for 2013, 2014 and 2015. When I look in the playlist for both iPhoto and photo, they are different with more projects in the new photo app than in iPhoto, yet my 3 recent project calendars are missing. Please advise how I can recover my 3 calendar projects.