Illustrator file icons no longer visible

I know it's not a fix for your issue, but EPS is an old dying format. If at all possible, I'd recommend moving away from. EPS does not support transparency like AI files do. PostScript font support has or is being removed from the OS and apps. To me the writing is on the wall for PostScript (PS) in general. So if there are other more modern formats like PDF or AI that you can move to, you may want to consider it. Those are my personal thoughts, and I don't know what Adobe's plans are for EPS support. I'm basing it entirely on a guess of where tech has been and where I "think" it's going. I could be wrong, but others I know in this industry feel the same way I do so I'm not alone.