Bento mesh seriously deformed on upload?

[Altier Verwood]

So nothing wrong with it in blender looks fine works fine, just on upload it looks like this, all the volume is gone from it, no idea what's wrong, I hate bento so much its so confusing. I'm not new to rigging in SL why is bento so broken?

https://gyazo.com/30212f6990c4bbd83e2108da91808995

Edited November 26, 2021 by Altier Verwood

[Altier Verwood]

Okay not sure how I fixed it after much testing apparently its something wrong with the bind pose data, i had to use this skeleton and only this skeleton.
https://blog.machinimatrix.org/fitted_mesh_survival_kit/

[Quarrel Kukulcan]

You found most of the issue yourself! The Fitted Mesh(*) bones need custom bind pose data (which it sounds like you understand better than I do). If you're using Blender, any rigged mesh object you make that's weighted to any of the bones with ALL_CAPS names either needs that data added as custom properties on the bones (and an extra export checkbox) or an add-on such as Avastar or Bento Buddy that adds it behind the scenes during export.

(* Fitted Mesh and Bento are actually two separate features, but since they both added more bones to the original rig, people usually just refer to the whole thing as "Bento".)