The second one works for me.
In the first one you should use %A_UserName%.

Try restarting the computer. Or run FastKeys as administrator.

It should work in majority of windows. However, caret position cannot be recognized in some applications and browsers (Windows limitation).

Have you accidentally changed the macro name (SELECT_name)? Have you changed the type of the command (should be Send)?
Could you try entering the macro again?

It is impossible to say without seeing your settings.
You can send your Settings files to our support mail with the steps to reproduce your issue and we will try to help.

Can you reproduce it? Exact steps would be great.

What if you add this at the end of the script?

This is a FastKeys Start menu. You can change it's appearance in Preferences/Start menu/Show menu...

This is currently not possible. However you could make up to four menus for different purposes.

Check Preferences/Text Expander/Advanced - I suggest you reset them to defaults and see if it helps.