Is one layer hidden by the other? You need to give us a little more to go on. Not at all clear what it is you are doing (to me anyway).
If you remove the logo and the layer with the shirt is above the layer with the blur in the Layers palette, the removed area must be transparent in order to see content in lower layers. Perhaps you filled the area with an opaque color instead.
To see if that’s the case, make all other layers besides the one with the shirt invisible, including the background (click the eyeball next to each layer thumbnail in the Layers palette so the eyeball disappears.)
After this, if you don’t see a checkerboard pattern where the logo was, then it’s filled with a color. Select the area, feather as needed, and choose Edit/Clear. That should do the trick.
An alternative is to add a layer mask to the layer with the shirt and fill the mask with black in the area with the logo. That will do the equivalent thing, but won’t change the logo pixels in case there’s some reason you need them.
Starting at the bottom with only Background visible…I click the eyeball for the Background Copy that has the shirt correction and the shirt is fixed. Then I click the top layer (I think it was a background copy) and the Gassian Blur is visible but the shirt is not fixed. But all eyeballs are visible.
the blur layer is on top, but i might have moved it earlier. see my more detailed reply. Learning Photoshop is really frustrating!!!
Think of layers as a stack of sheets of paper or clear acetate. If the top paper is solid you can’t see through it to the others underneath, regardless of whether the eyeball is clicked or not.
What you need to do is make a selection of the Blur only and have it on a transparent layer above the fixed shirt layer, or mask out the "wrong" image information on the top layer.
What did I do wrong when I did the Gaussian Blur? Layer has no color, is that different from transparent? How do I establish a layer as transparent?
If a layer has no colour and you aplpied a Gaussian blur, then you blurred nothing…
Sounds to me like you blurred a layer that didn’t get hte logo removed.
Just guessing, but you might try to change the mode of the top layer from Normal to screen or one of the other options. The other thing that might work is to play with the transparency slider on that layer.
