@Fox thank you for your reply. I want to simulate a shortkey keyboard input. Like CTRL+V which works with <CONTROL>v and it leads to pasting. But <MENU>g or any other shortkey functions with <MENU> doesn’t work. Which leads me to thinking that<MENU> is faulty.
It may not work to enter characters via "alt", but that's not what I asked. I asked why do you need exactly this kind of data entry? What is the ultimate goal you want to achieve?
If anyone has this problem add a HTTP client reset at the beginning of your script. HTTP client seems to get clogged at a certain point. Issue resolved.