Strange behaviour in object in Viewport

Hi all - Happy new year.

Just finishing the fluid part of my scene and something weird just happened.  I set a small render box to test my material, but when I came out to the solid viewport it only is rendering the objects that were in the render box.  Even though I have reset the render box, it is not effecting the viewport.  See images attached.  I have probably hit a key combination I wasn’t aware of, but any help to get me back to normal would be appreciated!  First image shows what I see in the solid viewport, the second is the same scene in the materials viewport.