In Rhino 8 I am frequently seeing the wrong cursor being displayed.
I have seen the text cursor and the pointed finger cursor displayed when I should be seeing the arrow.
When this happens, clicking on the Arrow button (cancel) has not effect.
Switching from Rhino to another application can change the cursor. If the arrow cursor comes, it tends to stay after switching.
So I can get something like:
Text Cursor
Switch to Word
Switch to Rhino
Pointed Finger Cursor
Switch to Word
Switch to Rhino
Arrow Cursor
Switch to Word
Switch to Rhino
Arrow Cursor