[1:31 10/27/2021 Update]
The previously reported issue is now fixed with iOS15.1. If you are using iOS15 or iOS15.0.1, please update your OS from the link below.
Thank you for using eContent.
iOS15 released in 9/21/2021 has an issue when playing some of the eContent content. This issue is an iOS related bug and Apple is currently working on the fix. If you are unsure about the version of your iOS, please visit this link.
[Content with the reported issue]
[How to deal with the issue.]
We will report any update regarding this issue on this page. We apologize for your inconvenience.
[8:20 9/24/2021 Update]
This issue is known to be solved in iOS15.1 update, however, the release date is still unknown.
Apple is currently working on the fix for iOS15.1. The expected release date is scheduled on 10/26 (subject to change).