arbortext editor: strange behaviour if deleting a character after an element

Hi,

we use the Arbortext Editor Version 6.1. If we delete a character after an inline element, arbortext deletes also the space:

You can see this in this example:

As you can see, the cursor is placed after the emphasis - element.

If we would like to delete the point character with backspace, Arbortext deletes also the space character:

That is absolutely not desired. Is there maybe a setting/option to change this behaviour?

Thank you for your help in advance.