Is it a problem if there is different back matter in the print book and ebook versions?

No, this is not a problem. You can have different back matter for the print book and for the ebook version of your book.

By nabinkarna|2021-10-01T08:35:07+00:00October 1, 2021|Book/Ebook formatting|0 Comments

{{trans(`You have no camera installed on your device or the device is currently being used by other application`)}}

{{trans(`Please try visiting this page with a valid SSL certificate`)}}

{{trans(`You can record up to %s minutes, don't worry you will review your video before sending`, time(preference.limits))}}

{{uploader.file}} {{uploader.size}} x

{{trans('Upload video')}}