I started thinking and trying to figure out but myself since Adobe always takes ages to solve any issue. 2 days ago importing PSD files as composition was working. And suddenly it stops working. The only thing I changed was installing Autodesk's import plugin , to import cameras lights and objects into my AE Comps. The workflow worked smoothly.I was able to get the data I needed from Autodesk 3DSmax. But now I know that ruined my PSD import. As soon as I removed Autodesk .dlls and the plugin file from the supportfiles/plugins AE folder, all the importing of PSDs started working again.I don't know why, but that was my problem.