Saving to PDF Causes Text and/or Object Colors to Invert
I don't even know how to use the correct terminology for this, but at some point during file creation, newly created text or objects look right in Illustrator, but save to PDF with inverse (I think – white is black/yellow is blue, etc.) color. This doesn't happen to everything in the document, just what is created after a point in time when something apparently becomes corrupted. I would be happy to upload my file for anyone who's willing to help me.
I've been using this workflow for over a year. The problem just started today, 08-29-2023. I can use a 6-month old file for a template and start manipulating text or objects, saving to PDF, and everything is fine, but once Illustrator saves the text or object inverted, that's the only way it will save any new text or object going forward.