SL default animation bleed through...

I'm having an issue with SL's default walk and run animations bleeding through my own walk and run animations I have made.

I made my animations using Qavimator and uploaded them at priority 3 (I believe SL's default walk/run is around priority 2.5 or 2.6?). When I preview the animations and play them in world they look fine, yet when I use them in an AO that fast arm swing from the default walk bleeds through even though the leg motion seams to by my animation.

I wasn't having this issue with other walk/runs I uploaded on the same day, so I'm wondering if this has something to do with the animations or if it is yet another bug in SL.

Okay, through trial and error I managed to stumble upon a solution to my own problem.

I experimented with several things including uploading the animation at Priority 4, which didn't work. I double checked and made sure my T-pose was all right and that my other frames ands keys were set correctly.

Well I finaly figured out the problem by determining which joints were moving when. In my case the shoulders were being moved by the aforementioned "bleed through". It turns out that for some reason in every frame where I did not have the shoulders set as a key frame the SL basic animation was overiding my walk animation. I don't know how or why it broke, but I fixed it! (story of my life...)

The reason is that it's supposed to do that. You neither broke nor fixed anything, you just figured out through trial and error a feature of the animation system in SL. Anything you don't purposely animate is left on the default animation. The reasons you would want to do this on purpose include if you want to leave the head free in your custom poses, if you are posing the right arm for wearing a purse and want everything else left normal, etc.