Being an architectural photographer I create a lot of layered files with many exposures with different lights on and daylight separately. I always save my layered files in a folder called Layered files in the project. I also save flattened 8 bit Tif's at full resolution for my client as a print file in a separate folder along with another folder for web and device optimized files. When my client opens some of my flattened files they tell me the only see one layer. When I open some of them in Preview I get the same result. I only see the last layer I put into my layered file. But when I open the same photo in Bridge I see the full flattened file as I saved it. What can I do about that?
Does the flattened TIFF file contain any Alpha Channels that could be causing a problem viewing in Preview?
Ah, yes. On the images that did what I described there was a layer mask in the channels drop down that showed only what was shown in the view. I trashed it and all was well.
Thanks for you help,
Apple has been notified of that problem - but after several years they still haven't fixed their alpha channel and transparency support. And Apple has similar bugs in other file formats as well.