Red X on TOC sections Robohelp 2022 3.93

Can anyone tell me why this red x appears on TOC section once I add an image (see screenshot).   Also, once I choose to update my TOC by choosing the AutoTOC option, my TOC it looses all of the tile images.  Is that supposed to happen?  Do I have to manually add all changes to my TOC in the event a change neesd to be made and then I have to readd all of my TOIC images?