Layers not hidden don't appear and are greyed out on layers tab

[Birdseye42]

I am developing a Newsletter the first page was finished some days ago and now several of the items on this page have disappeared, both shapes and text frames. These have been replaced with handles in the shape of a red bordered circle on white background. In the Layers tab the items are greyed out.  Not all have been affected and other items are displayed as originally placed. This is only affecting this one page all other pages are fine. The attached screenshot has text and shapes not showing when the original page was complete. I would emphasise that none of the items have been hidden in the Layers tab.

[walt.farrell]

You didn't show us the Layers panel. 

Also, it's more useful when screenshots include the complete application window.

[Birdseye42]

Yes, thank you, Walt.  I have just sorted it.  There was a graphic which had Text Wrap settings that had changed thereby pushing the text off the screen.  I have been using Publisher for some years now and I had never seen the circular red markers with white centres.  Plainly this was indicating where the items were and basically saying 'but I can't show them because you've messed up!'

Thank you for coming back to me - it's all experience.

[walt.farrell]

24 minutes ago, Birdseye42 said:

and I had never seen the circular red markers with white centres

You're welcome. 

Those indicate that the Text Frame or Story has overflowing text at the end, and that the Text Frame you're looking at is not currently Selected. It's an effect of having View > Show Text Flow enabled.