At the moment the question is exported using the Question (Legacy) tool and imported through the Question Import, the image from question is not shown in the Question Library.
Learning Management System Core
Reproducing the Issue
Question exported in the Admin side, System Admin > Tools > Export Data > in the Record Type box, select "Question (Legacy)".
This is an expected behavior. If the legacy question editor question has images outside of the question text and answer choice, the question library import ignores the images. It is possible to find more information about the legacy questions migration here.
It is possible to submit an enhancement request to have this functionality considered within future development cycles – you can do this on our Customer Community Portal at http://community.successfactors.com/. For detailed steps on how to raise an enhancement request please follow the attached KBA 2167560 - Submit an Enhancement Request for LMS.
question, legacy, import, image, export, library, missing , KBA , LOD-SF-LMS , SuccessFactors Learning , Problem