stereo+imu can not load map

[wanqingYuan]

i can save the map successful, but when i load the map , it said segmentation fault.

%YAML:1.0

#--------------------------------------------------------------------------------------------
# Camera Parameters. Adjust them!
#--------------------------------------------------------------------------------------------
File.version: "1.0"

Camera.type: "Rectified"

# Rectified Camera calibration (OpenCV)
Camera1.fx: 382.613
Camera1.fy: 382.613
Camera1.cx: 320.183
Camera1.cy: 236.455

Stereo.b: 0.0499585

# Camera resolution
Camera.width: 640
Camera.height: 480

# Camera frames per second 
Camera.fps: 30

# Color order of the images (0: BGR, 1: RGB. It is ignored if images are grayscale)
Camera.RGB: 1

# Close/Far threshold. Baseline times.
Stereo.ThDepth: 40.0

# Transformation from body-frame (imu) to left camera
IMU.T_b_c1: !!opencv-matrix
   rows: 4
   cols: 4
   dt: f
   data: [1.0, 0.0, 0.0, -0.005,
          0.0, 1.0, 0.0, 0.005,
          0.0, 0.0, 1.0, 0.0117,
          0.0, 0.0, 0.0, 1.0]

# Do not insert KFs when recently lost
IMU.InsertKFsWhenLost: 0

# IMU noise (Use those from VINS-mono)
 IMU.NoiseGyro: 1e-3 # 2.44e-4 #1e-3 # rad/s^0.5
 IMU.NoiseAcc: 1e-2 # 1.47e-3 #1e-2 # m/s^1.5
 IMU.GyroWalk: 1e-6 # rad/s^1.5
 IMU.AccWalk: 1e-4 # m/s^2.5
IMU.Frequency: 200.0

#--------------------------------------------------------------------------------------------
# ORB Parameters
#--------------------------------------------------------------------------------------------
# ORB Extractor: Number of features per image
ORBextractor.nFeatures: 1250

# ORB Extractor: Scale factor between levels in the scale pyramid 	
ORBextractor.scaleFactor: 1.2

# ORB Extractor: Number of levels in the scale pyramid	
ORBextractor.nLevels: 8

# ORB Extractor: Fast threshold
# Image is divided in a grid. At each cell FAST are extracted imposing a minimum response.
# Firstly we impose iniThFAST. If no corners are detected we impose a lower value minThFAST
# You can lower these values if your images have low contrast			
ORBextractor.iniThFAST: 20
ORBextractor.minThFAST: 7

#--------------------------------------------------------------------------------------------
# Viewer Parameters
#--------------------------------------------------------------------------------------------
Viewer.KeyFrameSize: 0.05
Viewer.KeyFrameLineWidth: 1.0
Viewer.GraphLineWidth: 0.9
Viewer.PointSize: 2.0
Viewer.CameraSize: 0.08
Viewer.CameraLineWidth: 3.0
Viewer.ViewpointX: 0.0
Viewer.ViewpointY: -0.7
Viewer.ViewpointZ: -3.5
Viewer.ViewpointF: 500.0

# System.SaveAtlasToFile: "my_map"
System.LoadAtlasFromFile: "my_map"

Load File
Initialization of Atlas from file: my_map
Starting to read the save binary file
End to load the save binary file
Change to map with id: 0
Seq. Name: 
There are 1 cameras in the atlas
Camera 0 is pinhole
Rectify: 0
Equal: 0
============================
not IMU meas
New Map created with 3153 points
[ros2run]: Segmentation fault