I have a modeless userform which has, amongst other buttons, one which
loads a secondary form (modal) that uses an API call to select a
network username and insert it to the previous form.  When I close this
second form down, using either hide, unload or end, the modal form
disappears and all buttons on the modeless form work except the save
and exit which runs some update routines then hides the form.  In
addition, no other forms can be loaded until Word is shut down and
re-opened.