I got multiple emails with credentials from different people and all without references to any forum post.
Yours is Stell*** I guess?
First thing tho. Do not use Theme Options > Portfolio to designate the portfolio page. Only use the options within the dynamic template.
Looking at water treatment.
I notice that all the images that have no grey-scale , all have this in the IMG html tag.
alt = "[ File # csp11222659, License # 2437815 ]
Licensed through http://www.canstockphoto.com in accordance with the End User License Agreement (http://www.canstockphoto.com/legal.php)
(c) Can Stock Photo Inc-greyscale. / nevodka"
Please compress all jpg images using http://jpeg-optimizer.com/ because your pool cleaner image is almost 800k when after compression without loss in quality its 78k
I added a new image of water cleaner, from the portfolio item page. And as you can see, everything works correctly.
i also edited personal care 2. in portfolio-item remove image. add image. select from gallery. remove that ALT description i pasted above. save. greyscale is now showing.