In WE ARE We work continuously to give voice to more populations.
That's why we have increased our reference panels, so now your results are more accurate. As populations increase our panel it is possible that the percentages change, because the resolution is now higher.
For example, you may have previously been assigned 20% of Pima ancestry but now you have 10% and a new component of 10% of Tarahumara ancestry. This may be because the population Pima It was the only reference of northern populations that we had at the time, and we can currently separate the northern component of Mexico into two populations: Pima and Tarahumara.