Right, it took quite some configuring to figure out but for those who suffer the issue that characters are not always properly modelled where some parts or maybe even the whole body won't show up at all, check the option to disable UBO under Graphics. This should generally not have any notable effect on performance (at least I can't notice any difference).
EDIT
It seems doing this does not always guarantee that characters are still properly modelled but at least it seems that they do NOT always sshow up with missing body parts unless after you've performed an Ex Burst.
EDIT
It seems doing this does not always guarantee that characters are still properly modelled but at least it seems that they do NOT always sshow up with missing body parts unless after you've performed an Ex Burst.