Hi Mateusz,
Thank you for contacting Syncfusion support.
We have checked the reported case in the RichTextEditor. In the RichTextEditor component, we have processed the value property as an HTML string. Hence the “\f” is being interpreted as an up arrow like the inner HTML method in the HTML5 element. Kindly refer to the below test sample.
It’s the components of intended behavior. To resolve this we suggest using escape characters in the string “\\f” .
Regards,
Mohana Priya R