It sounds like you have a color space that is not correct. Rather than export from PS, I suggest you Save (Not Save As) from PS which will bring your image back into LR. Export from LR as jpeg in the proper color space; if the image is for you or others to see in a non color-managed application, color space should be sRGB.
Thanks Joe, I'd initially set up the CC suite with common colour setting in Bridge so wrongly assumed that wasn't the culprit… however LR was using ProRGB for some reason.
As they say 'assuming'… blah blah ;-)
As an aside I prefer the 'Export as…' option for web use as I often use different setting which are more easily seen in the old 'Save for web' and 'Export as', horses for courses…
Hmm… though that had solved it but alas no, same issue.
When I look at the jpg that has been exported from PS it doesn't have the working profile assigned.
This doesn't happen when I save as…
That is correct; when you export from PS, the color profile is not embedded in the data. With applications that are or are not color managed, if the color profile is not embedded, the assumption is that it is sRGB. If the color profile of the image when it was created is not sRGB, the colors with not look right. That is why I suggested that you export from LR where you can specify the color profile which does gets embedded in the data.
Curious… never used to have this issue with CS3 or 4, seems flawed to me… why on earth you would want to export to jpeg and not get wysiwyg.
Export in PS is designed for use in other Adobe Applications, not for what you are using it. To do what you want to do, you should be using 'Save As'. You can read more about it here
It most likely worked before because you were working in sRGB color space. By working from LR, your color space is dictated in the LR Preferences as seen below:
Most likely, your color space is set for Adobe RGB, which has resulted in your recent color problems.
Again, may I suggest that you try 'Save' from PS and go back to LR to use the LR Export dialog. Just remember that to get wysiwyg in non color-managed applications, such as Windows viewer or IE, your color space needs to be sRGB, which you can choose in the LR Export dialog.
Appreciate your time, thanks you very much.
I'll look into and amend my workflow to 2015 standards!