iPad Pro Can't expand selection on screen with Apple Keyboard attached

I have the Apple keyboard attached to my iPad Pro. I can make an on screen selection by touching and highlighting a word but then I can't seem to drag the box and expand it to a larger area or words. Has anyone else experienced this with the Apple keyboard or the Logitech attached?

 

Selection of text on web pages. I have now discovered that it is a landscape view issue independent of the keyboard. If I remove the keyboard I cannot expand the text selection box in landsacpe mode. However if I go to portrait mode, I can expand the selection box.