Guitar Riff Lessons Don't Mark As Complete

Following occurs in the iPad Justin Guitar Lessons and Songs app.

When I watch the lessons for the guitar riffs in Grade 1 Module 3 (Seven Nation Army) and Module 4 (Sunshine of Your Life), the lessons don’t get marked as complete. Not really a huge problem, but I get a warning when I go to the module practice session saying “YOU SHOULD COMPLETE ALL LESSONS BEFORE PRACTICE”. I had to open the lesson several times and fast forward the lesson to finally get it to mark as complete.

Additionally, the lessons don’t include the actual Riff tabs and I have to go to the website version to see the actual riff tab. I wish the app was all inclusive and had everything that the website has.