Thank you for your clarification.
I have tested the ScrollToVisible method in a html website and I was not able to reproduce this behavior. I have used a public accessible website http://www.w3schools.com/. Here is a short video on how this is working on my end. I am providing you the code for your reference below:
HtmlAnchor link = Find.ByContent<
HtmlAnchor link2 = Find.ByContent<
It seems that this malfunctioning is connected to something specific in your application. In order to investigate further we will need a local reproduction. Could you please provide access to your application and the code you are using. In case your application is not public available you can provide us with a fiddler trace. In case you would like to provide fiddler trace you can use FiddlerCap
the Telerik team