Could be rules issue posted here http://drupal.org/node/1835050

changing the user in feeds or setting an actual user makes it work.

The rule and the error are attached:

{ "rules_second_import" : {
"LABEL" : "Second import",
"PLUGIN" : "reaction rule",
"REQUIRES" : [ "rules", "feeds" ],
"ON" : [ "feeds_import_test_inline" ],
"DO" : [
{ "entity_create" : {
"USING" : {
"type" : "node",
"param_type" : "product_display_from_import",
"param_title" : [ "commerce-product:title" ],
"param_author" : [ "commerce-product:creator" ]
},
"PROVIDE" : { "entity_created" : { "entity_created" : "Created entity" } }
}
},
{ "data_set" : {
"data" : [ "entity-created:field-wine" ],
"value" : [ "commerce-product" ]
}
},
{ "entity_save" : { "data" : [ "entity-created" ] } }
]
}
}

28.85 ms Evaluating conditions of rule Second import. [edit]
28.892 ms AND evaluated to TRUE.
" Rule Second import fires. [edit]

0 ms Rule Second import fires.
5.3 ms Evaluating the action entity_create. [edit]
7.548 ms Unable to create entity node": Invalid data value given. Be sure it matches the required data type and format.
8.564 ms Unable to evaluate action entity_create. [edit]
13.389 ms Unable to get variable entity_created, it is not defined.
14.405 ms Unable to evaluate action data_set. [edit]
15.52 ms Unable to get variable entity_created, it is not defined.
16.714 ms Unable to evaluate action entity_save. [edit]
16.823 ms Rule Second import has fired.

45.818 ms Finished reacting on event Before saving an item imported via Wine product import..