While inspecting my Black Eagle II that I have just received noticed the upper power limb (end near limb bolt) was riding on top of the lip of the end cap, let off some weight removed string then could slide end cap into proper position however when restrung and returning weight on bow the end cap ''slips'' back underneath the end of power limb. Tried this a few times with the same result as I haven't been able to tear down any further yet ( working 12 hour shifts all weekend) to see if I could find the reason for this. Anyone have any ideas? The slot that I can see on underside of endcap looks like it should have room to slide & stay outside of limb but it slips underneath. Bottom limb/cap works as it should throughout adj. range but there is definitely an issue with top. Any help appreciated.