stereo launch file error(only one image is played)

[park12345666666]

Hi!!
I run the launch file(pointgrey_camera_driver stereo.launch) but only one image is played.

rosrun pointgrey_camera_driver list_cameras
Number of cameras found: 2
[0]Serial: 18154835, Model: Chameleon3 CM3-U3-31S4C, Vendor: Point Grey Research, Sensor: Sony IMX265 (1/1.8" Color CMOS), Resolution: 2048x1536, Color: true, Firmware Version: 1.12.3.0
[1]Serial: 18154828, Model: Chameleon3 CM3-U3-31S4C, Vendor: Point Grey Research, Sensor: Sony IMX265 (1/1.8" Color CMOS), Resolution: 2048x1536, Color: true, Firmware Version: 1.12.3.0

error message

[camera/right/camera_nodelet_manager-5] process has died [pid 6813, exit code -11, cmd /opt/ros/melodic/lib/nodelet/nodelet manager __name:=camera_nodelet_manager __log:=/home/yul/.ros/log/990ef4cc-3e28-11ed-8f26-8cc68160c232/camera-right-camera_nodelet_manager-5.log].
log file: /home/yul/.ros/log/990ef4cc-3e28-11ed-8f26-8cc68160c232/camera-right-camera_nodelet_manager-5*.log

[ WARN] [1664257982.626184910]: PointGreyCamera: Failed to retrieve buffer within timeout.

cat /sys/module/usbcore/parameters/usbfs_memory_mb
1000

Please give me any advice, Thank you!!!

[Vergilwwj]

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