6.6.0.0.  Yes.

 

To reproduce:  Click a drop-down.  Do not select an item.  Click somewhere in the body.  (Drop-down remains)  Click the drop-down's down arrow.  (Drop-down remains)  Click the drop-down's down arrow again. (Finally, the drop-down collapses)

 

Copy text from the body using Ctrl-C.   Paste the text elsewhere in the body using Ctrl-V.  The body loses focus.

 

Pasting markup into the HTML view after initial load works occasionally.  Pasting a second time brings up an empty Paste dialog.

 

It is the minor issues that amplify an end-user's frustration.  This damages my product's and my credibility. 

 

Again. I am not a beta tester.  I am a paying customer.  Get a copy of Chrome and test your Editor.