hmm, I changed one of the layer`s name during the painting. Now when I look in the folder, the two files in there (one is TIFF one PNG) have different names than my layers, I tried to rename them to match the layers I have but still the same error.
The UVs look ok I think, I am not sure what the 0-1 uv space is so I attached a capture of my UV view.
I tried to reimport them, the one which I did not rename is imported correctly, whereas the other one is not imported correctly (when I import it, it just displays the object with the base material).
So the error should be because I renamed that layer during the painting? If I stick to the name that I gave to the layer from the beginning, the layers should load correctly?