When I power on my avia lidar, the Time Sync is ""PPS Sync" in livox_viewer, but when I launch livox_ros_driver , try to set GPRMC time to lidar with UART message. the Time Sync status will change, to "Sync Abnormal". I have tried several times, and each time it's the same. This issue can be reproduced.
one more thing,Every time livox_ros_driver runs for a while, there is always a timestamp rollback of about 1 second for the radar and IMU.
can you tell me how to fix it? thank you very much.