Since DAM 2.0, when an asset is uploaded, some of the properties are not set (like they are set in bootstrapped assets).
For example, see http://pastebin.com/5hnCyiRC (It show two Asstes as shown by jcr-queries app.
/test456/bla-bla has been added ,
/demo-project/img/logos/magnolia-logo is bootstrapped).

In a download list component, there is no file name displayed for a new added asset, "file name" (or title) is displayed only for bootsrapped assets. (See attached screenshots)

Fix templating-kit/components/content/downloadList.ftl accordingly to show the title or the name of the asset.