Feed display produces entirely different content than the default display

Hello!

I've got a fairly simple View that pulls email addresses from a subset of node types. There's an argument and a couple filters involved. I'm also using Views Field View. Here's the query:

SELECT DISTINCT(node.nid) AS nid, node_node_data_field_registeringteam.nid AS node_node_data_field_registeringteam_nid, node.nid AS node_nid FROM node node LEFT JOIN content_type_gameregistration node_data_field_registeringteam ON node.vid = node_data_field_registeringteam.vid LEFT JOIN node node_node_data_field_registeringteam ON node_data_field_registeringteam.field_registeringteam_nid = node_node_data_field_registeringteam.nid LEFT JOIN content_type_gameregistration node_data_field_registeredgame ON node.vid = node_data_field_registeredgame.vid LEFT JOIN node node_node_data_field_registeredgame ON node_data_field_registeredgame.field_registeredgame_nid = node_node_data_field_registeredgame.nid LEFT JOIN flag_content flag_content_node ON node.nid = flag_content_node.content_id AND flag_content_node.fid = 2 WHERE (node.type in ('gameregistration')) AND (flag_content_node.uid IS NULL) AND (node_node_data_field_registeredgame.nid = 151 ) GROUP BY nid ORDER BY node_nid ASC

I've got a feed and a page display. The default and the page show just fine (the "151" is just my test argument). The display view spits out highly unexpected results! Doesn't matter if I've chosen .xls or .txt or .csv or whatever, I never get the simple output that the default or page displays gives me: just a simple column of emails. What I'll get instead is, like, two or three emails repeated as many times as there are emails.

Is this a Views Field View issue? A feed display issue? The Views Field View pulls up, as I said, just fine in default and page.

List as a "support" query because perhaps I'm not understanding the functionality of the feed display. I've used it before to pull node lists or whatever, but never with the Views Field View. Does the feed output handle the query differently?

Thanks!

p.