ComiXology has reverted back its Android app from version 3.1 to 3.0.7. Most 3.1 version users experienced their entire comic’s database collection being deleted on their Android device.
While comiXology is in its effort to fix the bug, it advises the users to stay on their current version if no errors being experienced. Alternatively, users need to update the newest version available again (i.e. v3.0.7) if they are already in version 3.1 and experiencing errors.
Click here for the official notice from comiXology.