In reply to idolmonkey:
It's the mounting, beastmakers themselves don't creak.
It may or may not be a problem. At the very least, keep an eye on whether it gets worse over time and make sure your landing is padded with bouldering mats or something else just in case.
After I moved mine, the mounting creaked. It was alarming at first but it's had a few months use now, including with added weight and has shown no sign of getting worse. I still pad the landing though just in case.