If we follow this steps:

• The instructor creates a new assessment.

• The instructor creates the first assessment's question with an attachment.

• The instructor exports the assessment using the QTI option.

• The instructor imports the assessment and it works fine but the assessment's question doesn't have its attachment. The question has lost its attachment.

This is the expected behaviour because it is an QTI export, but we think the QTI Export option should describe that if the assessment has Section's attachments or Question's attachments they won't be exported.

Thanks,
Raúl