Hello David MacKenzie,
We have managed to reproduce your case. It turns out that there is a bug and we have scheduled to fix it.
As we are thankful for your feedback, we are rewarding you some Telerik points.
Do you mind telling us what your scenario is, trying to visualize a web page in the RadRichTextBox? We might be more helpful if we get the whole picture.
Should any other issues arise, do not hesitate to contact us again.
All the best,
the Telerik team
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