The text format not saved for a field

I'm importing nodes with two different feeds (from the standalone form) into two separate content types. One of the fields has HTML in it, was creating were encoding the HTML.

I looked around in the DB at the field_data_body table, and found the probable culprit: the body_format column value for the new, problem nodes was NULL (rather than filtered_html, full_html, etc.) Upon manually editing the node ONCE and saving the node, the problem went away, and sure enough the body_format field was then properly populated.

The problem is across two different feeds pointing at two different content types, and when I was using alpha5 this problem didn't exist (it started when I upgraded to alpha6).

I tried changing the input filter on the nodes (and the field), in the feed's Node Processor settings, etc. and repulling the nodes each time - no dice. The HTML is properly storing in the field_data_body table, and doesn't vary between alpha5 and alpha6 imported nodes (not encoded, etc.).

Note: I don't think this is directly related because this only happens with one of the two feeds, but there is also a notice appearing in the Drupal log with the 2nd feed: Notice: Undefined index: value in entity_metadata_field_property_get() (line 406 of /home/mine/domains/mydomain.com/public_html/sites/all/modules/entity/modules/callbacks.inc). Both content types have a Term Reference field. This also didn't occur with alpha5.