Using the "current layer" sampling setting for the eye dropper before I apply any top layer adjustments (adding a top layer with a different blending more or adding an adjustment layer) it works fine. When I use any adjustment layers or any layer that has a blending mode, it affects the way the eyedropper picks color especially when set to current layer.
For instance, If I paint a new blank layer with random colors, I create a black and white adjustment layer on top of that one, I select the first color layer I go to pick a color using the eye dropper with the current layer sampling set, it picks a grey color (which is wrong). BUT!! if I open up the color picker with the color layer selected it picks the correct color. Now, if I delete the black and white adjustment layer, and I am back to only having the color layer, I then go to pick a color with current layer sampling still set, it chooses a grey color again?!?! There are no more layers on top of the original color layer I painted first, and yet it chooses a grey color?!?! I hope this makes sense, any ideas on why this is happening?
I am working on Photoshop CS5 12.1 64bit
So after tinkering, I restarted my machine and it works. bleehhh...Sorry for the wasted post.
It really was the weirdest bug, color picking with current layer set was just acting strange after a certain combination of things but it is back to normal now.
I'm having the same problem in CS5.
With current layer selected and a not visible layer of curves (contrast) and trying to pick from the current layer it picks as if the curves layer was visible.
I have attached 2 images: first trying to pick with the curves layer off (you can see that it's picking a black color where brown should be picked. Second one with the curves layer on.
After restarting Photoshop every thing work fine again. So I have assumed that the problem is vinculated with the action done before:
I can reproduce this issue every time I use this technique...