TOC Buttons not showing on "Publish Online" PDF download

[Elizabeth123456789]

Hi,

I chose the publish online option for my indesign file. When I am looking at the published newsletter, there is an option to download a PDF version at the bottom of the online version. When I click on that to obtain a PDF version, there are no buttons showing on the TOC. In fact, where the buttons should be it is just blank. I tried adding bookmarks and using the Go to Destination, but they still do not show up.