1. Network connection problem: The interactive function requires a stable network connection. If your network connection is unstable or the signal is not good, the interactive function may not work properly. You can try to change the network environment or adjust the network settings to get a better network connection.
2. Account Permission: Some courses require payment or special account permission to use the interactive function. If you have not purchased the corresponding courses or obtained the corresponding account rights, the interactive function may not work properly. You can check the related courses and account permission information to determine whether you have the right to use the interactive function.
3. Device compatibility: Interactive function may be affected by device and browser compatibility. If your device or browser does not support the interactive function, it may not work properly. You can query the compatibility information of related devices and browsers to determine whether it is necessary to replace devices or upgrade browsers. If you have tried the above methods and still can't solve the problem, I suggest you contact Zebra Video Customer Service for consultation. They may provide more specific solutions to help you solve the problem that interactive functions are not available.