I have a totally weird problem here and I am close to tears, because that f****** bug is in heavy conflict with my timeline :/.

My Problem:

 - I click on a shape (no problem with images).
 - the shape is displayed as selected with grey resize handlers etc. (the edit shape mode in light blue, not the edit text mode in light grey).
 - But I can't copy or delete the shape. CMD+C or DEL don't trigger any reactions (normally the menu flickers briefly to indicate that shortcut worked).

My guess is that it is a problem with the selection mechanism, because:

 - When I select a shape by encircling it with the selection marker (click mouse, keep the button down, draw the selection mask over the shape) CMD+C or DEL are working.
 - The selection of the shape is displayed as described above.
 - The same applies if I click on the shape and drag it around. Afterwards I can use CMD+C and DEL.

Because of that and the fact that CMD+C works in any other program flawlessly it seems to be no shortcut issue.

The problem did occure spontaneous from one moment to the other within the same Powerpoint session.