LaserScan cannot be recorded

[luyang00]

Hi,
I'm trying to record a rosbag for slam testcase. In my test, IMU message has been recorded and replay normally but sensor_msgs/laserscan seems not recorded properly. The replay of this bag only have IMU message.
Then I try to only record laserscan message, the data size of this bag still not grow, so I guess it didn't write into a rosbag file but the log from rosbag2 on screen shows this topic has been subscribed successfully. I am pretty sure my laserscan topic has data and can be subscribed correctly.
Test on rosbag2 binary version at ros2-dashing.

[Karsten1987]

I think this is a duplicate of #201.
I'll close this topic as I believe the matter can be discussed on the other issue. Feel free to re-open this ticket if you feel that it's fundamentally different.

[mkhansenbot]

I'm running into this same issue, the /scan topic is being published by Gazebo, but I can't record it.

The issue you linked looks different to me, in that the fix was to the demo being used. I think this actually duplicate of #125

I'll comment there