1. Encrypted folder needs proper integration with fingerprint scanner. Currently, fingerprint authentication alone is not consistently working and is mostly asking for password first. This is probably a bug that needs to be fixed.

2. Hidden folders are visible via other file explorers and the folder as well as its contents can be deleted and manipulated, defeating the purpose of hiding it.

Using the latest version of Solid Explorer (2.2.8) on Android Nougat 7.1.2.