the Beta program stopped at the end of August. You now need a license for DPS 2015 or you can sign up for the trial. please note...  It is not possible to re-open beta accounts and get access to the project data or migrate them to a trial or provisioned account

‌you'll need to build what we call a Preview App.Go to the Apps section in the dashboard and make sure you select "Enable Preview Mode", then install on your device, that will allow you to preview unpublished content

Sounds like it could be a certificate issue, see Unable to Download App (Enterprise Signed)

1 - I know you are probably talking about the format but essentially, a folio in DPS Classic has now become a collection, the articles within the collections still represent the content2 - iOS, Android and Windows are the platforms you can publish to- We do not support the Kindle store- For book-typ...

Please take a look at this document: Disable auto-updates | Application Manager | IT administratorsLocate the AdminPref.dat file and change the value from 1 to 0 - see below

Hi there,I just sent you a private message about this.Thanks,CHristophe

Hi,I think the blank screen might be that you don't have everything in place right now, I'd take a look at the QuickStart guide https://helpx.adobe.com/content/help/en/digital-publishing-solution/help/getting-started-dps/_jcr_content/main-pars/down…    , that will take you through the workflow step ...

From an earlier discussion in the pre-release forum:

I see the problem, it looks like one card layout doesn't seem to adapt to different devices + from what I can see on your screenshot, the aspect of the card layout you see in the preview is not maintained on device.Neil Enns - Adobe‌ Have you seen this behaviour before?

Hi Paolo,you seem to be using a mix of different values (dip and %) in the Text Area Margins.Using the Preview feature, can you put everything to 'dip' and publish again to see if that makes a difference ?