I know I'm doing something stupid, I just can't think what! I've combined two PSD files together and removed the background. When I insert the new PSD file into an InDesign document I'm only seeing the red grab rail. Is it the mask I've got on the red layer?
I don't see anything wrong with your file or mask.
How are you putting it into your InDesign document. Save the PSD from Photoshop then using "Place" in InDesign?
Dave
Did you save the file?
What are the Object Layer Options and the Clipping Path settings in Indesign?
check your paths panel. I'm guessing there is a path around the red handle that is set to Clipping path.