Hi @jonathan.pierre ,
Yes, we believe this is being caused by a bug which was first identified in this forum thread. We have not had an opportunity to prioritize squashing this one yet, but thanks for your patience and for reminding us that it’s a problem for users like yourself.
I’m personally not very familiar with the InVEST Annual Water Yield (AWY) model, but I know that it’s aimed at helping to model nature’s contributions to hydropower production. It does provide spatial water yield results, but only as annual averages. As mentioned in the User Guide, AWY
…is based on annual averages, which neglect extremes and do not consider the temporal dimensions of water supply and hydropower production.
-Jesse