Images fail to be rendered with High Sierra

[Polechat]

I have just install High Sierra 10,13,6 . Using Open Office 4.1.6 and LibreOffice 5.1.5.2
All my .odt files with images now fail to be rendered.
Either being totally deleted without as frame) or saying 'image cannot be shown' if within a frame\

However newly created files semm OK

Can anyone help resolve this.
Never had a problem with earlier OS version