I have the problem also:
if it can help:
After editing the "When the command exits: Hold the terminal open"
you can run this command from an existing gnome-terminal to reproduce the
problem:
gnome-terminal -e "ls -altr" (I get the the blinking cursor and no prompt)
if you type
gnome-terminal
I have the "same" problem
my command:
gnome-terminal --command "echo test"
A new terminal pops up but showing only a blinking cursor, no "test" AND
no prompt
if I start
gnome-terminal --command 'sh -c "echo test && sleep 5"'
I do see the text, but I doen't return to a prompt ...
--
gnom