gistfile1.txt

Created in a simple file with a single layer. 
Misc. details: It's in RGB mode and has an alpha layer, but no layer mask.



    Error while executing script-fu-layer-effects-bevel-and-emboss:
    
    Error: ( : 1) Procedure execution of gimp-selection-layer-alpha failed on invalid input arguments: Item 'rext copy' (111) cannot be used because it has not been added to an image