we have just upgraded our 5 man shop to X6.
This is happening on all of our setups.
when we are selecting a row of text to edit. if you start typing while the old text is highlighted it will keep the current font and color.
if you select that row and hit backspace to delete a few letters until the text line is empty and begin typing it will default to Arial and make the color black.
I took an amateur look though the settings and i don't see anything that helps.
any help would be greatly appreciated as we do this literally hundreds of times a day and in X5 we had no problems.