Ps CS6 Save For Web - various resampling choices give identical result

Ps CS6
OS X 10.6.8
Save For Web offers 5 resampling algorithms (the same 5 as in Image Size, ignoring "Bicubic Automatic", of course) for when the output is being resized.
All choices except "Nearest Neighbor" output an identical image (which is different to all results of Image Size). Although the "Bilinear" output contains the same pixels as the output of the 3 bicubics, its file size is slightly different then their shared file size.
I normally resize with Image Size, so this post is not a request for help. This is only to alert Adobe to the apparent problem.

conroy2009-
i am happy to report the issue for you, with some more information to better understand the problem.
i would recommend you take a look at the following link:
http://www.jeremymoore.com/GettingGoodPictures/PhotoshopResample/
http://help.adobe.com/en_US/photoshop/cs/using/WSfd1234e1c4b69f30ea53e41001031ab64-7945a.h tml#WSfd1234e1c4b69f30ea53e41001031ab64-793ca
http://www.photoshopessentials.com/essentials/resizing-vs-resampling.php
the link above better explains the differences in the three resampling modes.
-janelle

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Ps CS6 Save For Web - various resampling choices give identical result

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