Should the setting under the ‘Blocker’ tab be set to ‘Allow the operation or Deny the operation’.
The Blocker behavior is an old feature… I won’t change the default values.
No action checked, allow operation (default).
It shouldn’t really matter as by default all the Blocked Operations: items are unchecked.
I believe it is set to Allow by default, personally I think that should be Deny, otherwise to my way of thinking there would be little point in checking any of the items if you were subsequently going to allow the operation.
If you do select any operations to block, be prepared for death by pop-up if you choose any operation that you would do frequently.