No, but it's because the bookmark/clip relation is different.
In the previous client, all bookmarks had a clip length based on how much you set in the Preferences. (I forget the exact amount for auto bookmarks). So it was easy to just grab all the bookmarks and upload.
Currently in the Beta App, the bookmarks do NOT have a clip length automatically assigned to them. Instead, you set the clip individually.
With that being said, we're open to feedback so feel free and let us know if you think anything should be changed.