Can not get Video on OrangePi 5 Plus w/ OpenIPC v1.2.0

[KevinChau9527]

Hi,
I was flash the image to orangepi 5 plus and follow the guide (Release/orangepi5plus-v1.2.0) to gen 2 keys: drone.key and gs.key. Next step I transfer your gs.key to OrangePi 5 Plus's /etc directory and put drone.key to my camera's /etc directory. Then reboot this two devices.
However, the monitor only display the desktop.png(which is openipc icon).
After all , I check the config channel in both drone and groundstations, it seems both in same channel. And I confirm the gs has received the frame package because tcpdump shows the data. It seems there are no program to decodec the rtsp data (like gstreamer).
Is there any key step that I miss?

[KevinChau9527]

Show the video by gst-launch command