This was caused by the deinterleaved format being
incorrectly decoded by the `bind_attribute_as_ssbo`
function.
Accumulating the offset should be done for all attributes
and not only the one being used. Furthermore, this needs
to happen only once per attribute and not once per name.
Moving the offset computation out of the name loop
fixes the issue.
Pull Request: https://projects.blender.org/blender/blender/pulls/136821
4b2cbf5d6f