Layers being moved when exporting to PDF

[Deanna]

Hello,

This word is 3 layers. Brownish on top, white for a bit of a 'shadow' (low opacity) and black to set off the white.

I haven't had this mess up like this before and don't know what to do to fix it and export it as I would like it.

Suggestions?  Ideas?   

Thanks!
Deanna