Animation Upload Preview Not Working???

Okay - Tonight I went to go look at the preview of an animation I'm working on and in the preview window all I saw was... well... the best I can describe it is how the normal preview figure might look if you put her in a trash compactor then got a few people to use her as a punching bag. Pretty much just a big ball of mess. I thought I had done something horribly wrong with my animation but when I tried a pose that I know works and have uploaded already, it looked pretty much like the same messed up ugly lump in the preview.

Has anyone else had this problem recently or is there something that has gone wrong on my end? Any help would be greatly appreciated. I don't want to upload anything without seeing a preview of it first since I'm still kinda new and learning.

seems to be working fine for me.. *shrugs*

Happens sometimes. Seems to be a bug in the previewer. However, it usually does not imply your animation will look like that.

Anyway, the previewer is pretty much useless since it does not reflect the most important parameters of an animation. Smoothness, hip rotation and feet position, all can be judged only after the upload.