The color of the object is different that what is shown in the layers panel.

Hello.

I'm not sure how I caused this or why Adobe isn't changing the color of the object in the layers panel. Further why Adobe is allowing this to happen? How can I prevent this from happening in the future?

I'm assuming I used the eye dropper to change the blue letters to white. In my design process the artwork was first created with the blue color. I'm including the Appearance and Layers panel in my screen shot.
This print job resulted in a print error and the need to reprint the job. The blue color is what was printed when the white should have been printed.
Thank you for your assistance.