Howdy, welcome to the forum! As you might have already figured out, this is a great community full of people who love to help.
If possible, post the macro itself so we can take a look at it and see what might be going wrong. As one of the moderators likes to say, "If we're not testing we're guessing, and guessing often wastes people's valuable time". 
If you need help on how to post the macro, just let us know and we can walk you through it.
If you haven’t had the opportunity to read this tutorial, I highly recommend it. It will help you get the most help for your question.
Tip: How Do I Get The Best Answer in the Shortest Time?
All that being said, typically when you want to insert the actual token/variable etc. using the insert text by pasting/typing action, you need to wrap them in double % symbols. So instead of %SystemClipboard% you would use %%SystemClipboard%%.
Try that out and see if it works for you.
-Chris