Green symbol on cursor prevents drag copying...???
I recently updated to Illustrator 26.1 on an Intel iMac running OS 10.15.7, and this new problem cropped up. Frequently, when I am attempting to drag copy an object (mouse select + option key), a strange symbol consisting of a bright green circle containing a white "+" (plus sign) appears on the cursor. When this symbol is present, on releasing the mouse button at a new position, the object snaps back to its original postion — it is neither copied nor moved. This occurs frequently, but not always. It makes it extremely frustrating to work when one has to repeat the same operation 6 or 8 times to get it to stick.
BTW I have been using Illustrator regularly since version 3.0, so my muscle memory is pretty deeply entrenched.
