[Zubersoft]

If you go to Settings->About, what version of MobileSheetsPro are you currently using? Version 3.3.7 was released a couple weeks ago and it fixed an issue where black pages could be displayed while using half page turns with the single page display mode in landscape. If you are running an earlier version, please load the Google Play Store app, search for MobileSheetsPro and download the latest update. That should fix the issue you are seeing.

Mike