The timestamps in topic's messages are fixed.

[lnexenl]

Bug report

• AirSim Version/#commit: commit 00f4db3
• UE/Unity version: 4.27.2
• autopilot version:
• OS Version: Manjaro 21.2.6

What's the issue you encountered?

I am currently using airsim_ros_pkgs to record some bags, I changed the version from tag v1.7.0-linux to master branch today. However, I find that the topic in the bag has a fixed timestamp, when using commit 00f4db3. When using older v1.7.0-linux version, time flows in topic.

Settings

{
    "SettingsVersion": 1.2,

    "SimMode": "Car",
    "ClockType": "SteppableClock",
    "Vehicles": {
        "car":{
            "AllowAPIAlways": false,
            "VehicleType": "PhysXCar",
            "Sensors": {
                "Barometer": {
                    "SensorType": 1,
                    "Enabled" : true,
                    "PressureFactorSigma": 0.001825,
                    "PressureFactorTau": 3600,
                    "UncorrelatedNoiseSigma": 2.7,
                    "UpdateLatency": 0,
                    "UpdateFrequency": 50,
                    "StartupDelay": 0
                },
                "Imu": {
                    "SensorType": 2,
                    "Enabled" : true,
                    "AngularRandomWalk": 0.3,
                    "GyroBiasStabilityTau": 500,
                    "GyroBiasStability": 4.6,
                    "VelocityRandomWalk": 0.24,
                    "AccelBiasStabilityTau": 800,
                    "AccelBiasStability": 36
                },
                "Gps": {
                    "SensorType": 3,
                    "Enabled" : true,
                    "EphTimeConstant": 0.9,
                    "EpvTimeConstant": 0.9,
                    "EphInitial": 25,
                    "EpvInitial": 25,
                    "EphFinal": 0.1,
                    "EpvFinal": 0.1,
                    "EphMin3d": 3,
                    "EphMin2d": 4,
                    "UpdateLatency": 0.2,
                    "UpdateFrequency": 50,
                    "StartupDelay": 1
                },
                "Magnetometer": {
                    "SensorType": 4,
                    "Enabled" : true,
                    "NoiseSigma": 0.005,
                    "ScaleFactor": 1,
                    "NoiseBias": 0,
                    "UpdateLatency": 0,
                    "UpdateFrequency": 50,
                    "StartupDelay": 0
                }
            }
        }
    }
}

How can the issue be reproduced?

Illustrated enough clear above.

Include full error message in text form

What's better than filing an issue? Filing a pull request :).