Editor Tools do not stay selected after hit return

When using the Editor tools from https://www.telerik.com/kendo-react-ui/components/editor/tools/, the tools are not staying selected when a user hits 'return' in the editor field, and the drop downs for FONT SIZE and FONT NAME only work if text inside the editor has been selected. 

For example:

1. I have an empty editor with the FONT SIZE editor tool in the toolbar.
2. I click into the text area of the editor.
3. I select a font size of 6 (24pt).
4. I then type into the editor. 

Results: The text I just typed is NOT 24pt, but because I selected the 24pt font size I would expect the text I type to be 24pt.

Another example:

1. I have an empty editor with the Bold (B) editor tool selected.
2. I type in a line of text in the editor (this is shown as bold as I expect)
3. I hit 'return'
4. I type in another line of text in the editor

Results: The text on the second line is not bold. The bold option appears to 'turn off' after I hit 'return', but I would expect the text to be bold until I turn bold off.