Base_link rotation different for different bag files even though they followed the same path.

[bclaw524]

I made 2 bagfile recording of a lidar+imu at a nearby tennis court. during playback, the rotation angle of the base_link differs from each recording. The lidar+imu followed the exact same path and recording started when the bot was stationary on the start point.

Recording 1:

Recording 2:

[stale]

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