Cursor is lost after clicking on script element menu

In a screenplay scene (document), screenplay mode: enter text. hit enter, Hit enter again to get the “Script Element” menu.

Click once on an element with the mouse.(for example Action) Nothing happens.
Double click an element with the mouse. The element style is applied, but the cursor disappears and is you can’t type in the document. any number of times and the focus never returns. It’s lost.

Yet, if, after the cursor disappears, I hit enter, the “script element” menu returns.