There is a bug that causes you to be able to do anything but type in chat if you use <st> commands too fast, or use a different skill before a macro activates your skill in <st>. For instance If I Start a macro with multiple skills for <st> but i decide i want to turn aoe on or off, doing so will lock all my actions and prevent me from opening the main menu. The only way i have found to fix this is to use the /logout command and select no if it asks you.