I know there was a thread on QC issues with Hercules and fixes. I did a search but could not find the thread. While cleaning my display shelf I picked up Hercules and noticed his left knee is loose. The ratchet doesn't seem to click anymore. I remember that part was pretty tight when I first got it. its been on display ever since. It seems maybe the weight of Hercules loosened it? Anyways, was this a common QC issue. Is there a fix for it? I tried to tighten the screws around that area but didn't help.