Help, I don't understand why my image windows or being greyed out

Hi, when I open multiple windows on Photoshop 25.0.0 on my Mac. I will select one image and open it in Ful Screen Mode with Menu bar, i'll do my work. Then I switch back to standard screen Mode all my other open images become mostly greyed out with a small portion of the images visible on the bottom right corner. See attached sample image. Has anyone had this issue?