Here's an odd one.
I have two Master pages in my document: Left and Right. Both appear fine when viewing/editing the SLA file, and both appear fine when I export the file to PDF.
HOWEVER, when I then optimize that PDF to reduce its file size, the Right master page no longer appears in the optimized document.
The image on the Left and Right pages is identical, just flipped horizontally, and I am at my wits' end.
Has anyone else run into this issue? I've deleted and replaced the image(s) in the source folder, deleted and replaced the image frame(s), everything I can think of. What am I missing?