I am building an e-mail list out of Leads/Prospects module using a tag. When we filter in the module for the tag, e-mail field contains data & opt-out not selected that saved filter should match the list in campaigns after is was synced. I have 4 different filters and 4 different list with 4 different syncs. None of them match the count that I get directly out of the module. This holds true for both Leads/Prospects & contacts.

What am I missing?