Joint failure 360

Sorry for my bad english. I have a problem, I want to paste 3 slides from one Story to another that already has 2 slides, but it fails. they stick but without the audio and videos that were integrated and in the timeline there are the images but in reality they are not seen and it does not allow me, for example, to replace the audio.
I have reinstalled the program but it remains the same, I have restarted the computer and nothing
I need help