One file opens much larger in Illustrator

For years I've had the same workflow for printing my custom labels, create the 3.3" x 4" design in photoshop, save as jpg, then open in Illustrator to create the print file. I have hundreds of these photoshop files that are the templates, and again have been doing this for years. I now have one file that when I open it in Illustrator it opens as a 16" tall label instead of 4". I've checked the size settings of the photoshop file and the jpgs created from it (in Photoshop image size shows 3.3" x 4" 300 dpi, same as all the other files). Has anyone ever seen this, or is there another setting somewhere that might be off? I'm perplexed and appeciate any help. Thanks!