Mixpanel Email Filtering Limits and Workarounds for Large Cohorts

I have a list of 45k emails of users that already exist in Mixpanel. (I need to create a cohort using criteria that isn’t available in Mixpanel, so I pulled the list of emails externally and uploaded it as a cohort.) The issue is that when I try to filter using this cohort, I get an error (Unsupported Request: Precondition Failed). Smaller cohorts (2200 emails) work fine, but larger groups (4999 emails) or combining smaller cohorts fail. Does Mixpanel have a limit for filtering by email? If so, are there any workarounds for handling large lists like this?