### Basic info - Commit SHA: main - Platform: ### Bug description Split Pre-rendering in general seems to use only the rotation information of the first subframe for rendering. For MASA split-prerendering in the external renderer, the full set of rotation matrices is used in rendering the 4 subframes of the default pose. I guess that should not be the case when looking at the code for the other poses, where it is really only the orientation of the first subframe that is used to get the rotation matrix for all for subframes. Happens in `ivas_dirac_dec_binaural_internal()`. ### Ways to reproduce (Clear steps or refer to a failing automated test, e.g. with a pipeline link) <!--- Below are labels that will be added but are not shown in description. This is a template to help fill them. Add further information to the first row and remove and add labels as necessary. -->