Why do these marks remain on content slide?

[AnotherMe]

Using Adobe Captivate 2019 I selected the  Content 06 slide. I deleted the objects I did not need but these circles (forgot what I call them but I used to see them all the time during my Flash days), remain on the stage. Does anyone know why they are there?

Thanks

[MichaelStephens]

Do they stay on that slide if you close the file and then re-open it?

[AnotherMe]

They stayed even when I published it. But the other slides did not have it so I just duplicated the slide that didn't have it and put the content in that one.

[Lilybiri]

Do you see them with Preview methods?

You talk about 'Content06', in which theme please?

[AnotherMe]

I saw them in preview and even when I published. The theme was called Pearl and was 1024 x 768. The other slides did not have those circles. So I just duplicated the slide and put the content I was using into that slide. It fixed the problem.

[alfredmack]

If you can't delete them from slide then try checking in your master slide.