Thanks Jane, Monika and Peter Your right I was using one as RGB and one as CMYK Changed both Artboards to RGB ( like original) And now Placing one ai into another works with changing the Paste Remembers Layers However if I still just select all layers and drag into another artboard ( new file) I still seem to loose a layer even tho it is selected and one of the layers to drag across. I know it is hard to 'suggest a fix" when you dont have the full file, (Which I can supply) but Placing it seems to work now anyway which is a start. I thank you all for your help Pete
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