I'm calling :DescribeSavingsPlans from the :savingsplans api and getting back an anomaly that has the message "Too Many Active Keys" and the category "incorrect". This is only occurring in production, and I have not been able to repro locally. My first theory was too many concurrent calls to the api endpoint. Simply executing many concurrent calls locally results in a different anomaly with the message "Too Many Requests". I'm curious if anyone has seen an anomaly with an anomaly message like "Too Many Active Keys" before.