Some apps are not compatible with the new device and cannot be used after cloning to the new device. In order to save time for cloning, this part of the application is not cloned, you can download and install it by yourself.
There are a few reasons why some applications cannot be cloned.
The app is not designed to be cloned. Some apps are designed to be used by one person at a time, and cloning them would violate the terms of service. For example, a banking app would not allow you to clone it so that you could have two accounts with the same login information.
The app uses copy protection. Some apps have copy protection measures in place to prevent them from being cloned. This is often done to prevent piracy.
The app is not compatible with the cloning method being used. There are a number of different ways to clone apps, and not all apps are compatible with all methods. For example, some apps may only be able to be cloned on rooted devices.
The app is not installed on the device. You cannot clone an app that is not installed on the device.