Keyboard Maestro rarely freezes or skips commands.
Those kinds of problems tend to be caused by timing issues.
Please post your Pages macro, so we can see what you're doing.
How to Post Your Macro to the Forum
If you haven't read this it's worth a couple of minutes of your time.
Tip: How Do I Get The Best Answer in the Shortest Time?
Christopher Stone
(Keyboard Maestro Moderator)