smart object canvas size not carrying over to parent file
I have a smart object of say 300x400 that has transparent BG, consisting of texted placed in center of canvas. When I bring into the parent file, the bounding area of that smart object closes in to just the text region, and I lose the size of the smart object canvas, where I need that layer to stay 300x400, instead of 100x200 which is the text edges. How can I make that smart object carry that 300x400. If I turn on a color fill in the artboard within the smart object the size stays.