Hello, recently I've been having a problem where objects will disappear visibly, but still remain to select, duplicate, move, etc. (you can see the same outlines as when you'd click on any object, just the model itself cannot be seen.)

This usually happens when I move away from the objects to the point where they are no longer present on the render window, and when I come back to said point, they can't be seen.

Don't know what to do, any tips would be much appreciated!