Hi @cesteban - this hasn't been addressed yet, but it is worth noting, this error has to do with having a lot of features --- personally I think the utility of this visualization decreases with too many features (or samples, for that matter). One solution to get you moving right now is to filter your feature table to a subset of features worth looking at that are relevant to your study. Another option is to collapse your table to some some taxonomic level. Keep us posted! 