That’s not the plugin doing it. It’s a WordPress setting (or another plugin). WP-Members core plugin does not do anything with the feed, and recommends that you set feeds to “summary” instead of “full text.”
If you want full articles in the feed, set the WP feed setting to “full text.”
The one exception to this is if posts are marked as hidden. If a post is marked as hidden, it is removed if the user is not logged in.
The plugin’s Advanced Options extension does have settings for handling different feeds in different ways, but that’s a separate plugin and those settings are not in the main core plugin.
Hello
the WP feed setting is already set to “full text” and yet the feed does not appear with full text.
When I disable the plugin “WP-Members” the feed appears with the full texts.