This problem is has been there at least for the last 3 versions of
PN (726, 723 and 71) for at least 1.5 years and I am
amazed nobody takes care of it !!!
It got me frustrated, so I found the fix (for
PN version 726):
in
includes/blocks/button.php, function
blocks_button_edit, replace
with
The difference is
$ in front of
brow
Tested - works like charm now :)