JSTAR0057 Hi, based on your description, guesses are related to the following reasons:
1 The power supply voltage may be insufficient. You can check whether the voltage value displayed on the ASIAIR app is normal (12V Power Port for Camera) when shooting. If the voltage is abnormal, please try to replace the 12V DC cable or power adapter
2 USB 3.0 cable problem. Please try to replace the USB3.0 data cable.
Regarding the 4 power port, you can check whether the power port in App - ASIAIR Settings is turned off or set to 0%.
If you still can't solve it, please submit a log after occurring the problem. We'll help you troubleshoot the issue by checking the logs. Thanks in advance.