segmentation fault in ego-vel est with demo rio bag

[Youras]

Hello, I am trying to run your ego velocity estimator demo in rio format, but it always throws an error.
I am using Ubuntu 20.04 with ROS noetic.

I tried to debug and what I found so far is that it publishes well with topic /radar_ego_velocity_estimation_node/twist for 114 sequences, but then it throws a segmentation fault.

I launched the node with:
roslaunch radar_ego_velocity_estimator demo_rio_ego_velocity.launch mode:=rosbag use_odr:=True run_without_trigger:=False

It doesn't make any difference wether I turn ODR on or off or wether I run with or without the trigger and I didn't change anything in the launch file nor in the params_demo_dataset.yaml

Here is the console output:

Do you hav any Ideas?