P: Save As dialogue is missing options
I created a file with an alpha channel and chose "Save As" to save a psd. The alpha channel I created was missing from the file. However, choosing "Save A Copy" revealed an "Alpha Channels" checkbox that was deselected. I selected the checkbox, saved the psd and now it works. I can also choose "Save As" again and it will save the alpha channels as expected.
This seems like a permanent toggle that is applied to all save methods but only shown on one save method. There are other options missing too, like "Notes", "Spot Colors", and "Layers". I don't understand why the options are missing from the Save As dialogue when the format remains the same.

