The thick calibration bar obscures the underlying mapping line. This is problematic when trying to visually ensure that mappings don't overlap, but wanting to calibrate from two temporally distant periods of the video. This is evident in the screenshot below as the large orange bar, which obscures the fact that I'm actually mapping to only a small portion of the scene video.
I understand the issue. I would recommend to use the time ranges displayed in the menu though. Using the timelines might be inaccurate for long recordings.
The thick calibration bar obscures the underlying mapping line. This is problematic when trying to visually ensure that mappings don't overlap, but wanting to calibrate from two temporally distant periods of the video. This is evident in the screenshot below as the large orange bar, which obscures the fact that I'm actually mapping to only a small portion of the scene video.