Hi everyone, we took a look into the title and see the bug that is causing the issue described. There seems to be an action linked to the text block hyperlink to ‘Go to Section on mouse click’ that is not being cleaned up correctly on title save (which is why the error comes back after you reload the title). We will have a fix for this in the next release to resolve this.
In the meantime, one workaround you can do is the copy the textblock contents and paste it into a brand new textblock. You will need to set in the hyperlink again one time, but doing this once should remove the publishing error permanently and the need to go into the hyperlink each time you load your title or publish it.