Hi R Tomchuk and welcome to the RH forums.
Can you start by telling us where you are publishing to. Is it a server? What type of server? The fact that you can see the hotpost operating as you expect in the generated output (which presumably on a local or network drive) suggests that there is something on that server that is affecting things. Do you have another server location you can publish to to check this theory out?
Thank you for responding!
We normally publish to SharePoint, which is the platform our internal company sites run on. However, I did attempt to publish to a local network server and got the same results. The problem also occurs if I publish to my own hard drive.
Also, I recently upgraded to RoboHelp 10. Prior to that, I did not encounter this issue in 9.
Can you create a new project and test whether this happens with the default style sheet. If it doesn't import your style sheet and report back what happens.