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I am running PM v5, build 18980. Dell 7000 laptop with Win10 HomeIn the contact sheet some PSD files show only as a white rectangle. Other PSD's create in the same time frame show correctly. See the attachment.this link will take you to a Google Folder with the two example files: https://drive.google.com/drive/folders/0B-cn_dkUkOY6X3dMZnUtRmY3bk0?usp=sharingKnik Blue_Fisherman.psd displays correctlyHatcher Pass_Alaskan Range.psd demonstrates the problem.
No, the setting in the preferences for Maximum Compatibility is set to Never.