foreign complexType from imported schema raises error in xml instance

I get this error

cvc-complex-type.2.4.a: Invalid content was found starting with element 'Item'. One of '{"http://ift.tt/1wkZM9c":Item}' is expected.

The xml instance I'm using is this:

<?xml version="1.0" encoding="UTF-8"?>
<Foo xmlns="http://ift.tt/1zimHya">
    <Element>some Data</Element>
    <Element>some Data</Element>
    <Element>some Data</Element>
    <Bar xmlns="http://ift.tt/1wkZM9g">
        <Item>
            <Value>My Value</Value>
        </Item>
    </Bar>
    <Element>some Data</Element>
    <Element>some Data</Element>
    <Element>some Data</Element>
</Foo>

This is the Bar schema:

<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://ift.tt/tphNwY"
    xmlns:fooBar='http://ift.tt/1wkZM9c' targetNamespace="http://ift.tt/1wkZM9g"
    xmlns:Bar="http://ift.tt/1wkZM9g" elementFormDefault='qualified'>
    <import namespace='http://ift.tt/1wkZM9c' />
    <element name="Bar">
        <complexType>
            <sequence>
                <element name="Item" type="fooBar:itemType" />
            </sequence>
        </complexType>
    </element>
</schema>

And this is the imported fooBar schema:

<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://ift.tt/tphNwY"
    targetNamespace="http://ift.tt/1wkZM9c" xmlns:fooBar="http://ift.tt/1wkZM9c"
    elementFormDefault='qualified'>
    <complexType name="itemType">
        <sequence>
            <element name="Value" type="string" />
        </sequence>
    </complexType>
</schema>

I suppose it is not getting the namespace right? But why? If I drag the itemType from the fooBar schema to the Bar schema the error is the same but this time it complains about the Value element. Is this a bug or am I doing something wrong? It seems it can't handle types from imported schemes.