Ground SDK MainCamera set active

ANAFI USA / ANAFI Thermal / ANAFI 4K
1

I am working with Anafi 4K and I want to programmetically record videos using ground sdk

The code I wrote after following documentations is as follows

import com.parrot.drone.groundsdk.device.peripheral.MainCamera
import com.parrot.drone.groundsdk.device.peripheral.camera.Camera
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private fun monitorCanStartStopRecord() {
        try {
            logger.log("---------Monitoring camera record options")
            cameraRef = drone?.getPeripheral(MainCamera::class.java) { camera ->
                camera?.run {
                    if (camera != null) {
                        logger.log("Camera initialized")
                    } else {
                        logger.log("Camera initialization failed")
                    }

                    camera.mode().value = Camera.Mode.RECORDING
                    logger.log("Main camera is ${if (isActive) "active" else "not active"}")
                    logger.log("Camera mode: ${mode().value}")
                    when {
                        canStartRecording() -> {
                            logger.log("Photo capture can be started")
                        }

                        canStopPhotoCapture() -> {
                            logger.log("Photo capture can be stopped")
                        }

                        canStartRecording() -> {
                            logger.log("Video recording can be started")
                        }

                        canStopRecording() -> {
                            logger.log("Video recording can be stopped")
                        }

                        else -> {
                            logger.log("Monitor: Video recording can't be started or stopped")
                        }
                    }
                }
            }
        }catch (e: Error){
            logger.log("Error : $e")
        }
    }

    private fun toggleStartStopRecord() {
        logger.log("Pressed record toggle")

        drone?.getPeripheral(MainCamera::class.java)?.run {
            when {
                canStartRecording() -> {
                    startRecording()
                    recordBtn.apply {
                        text = "Stop Recording"
                    }
                    logger.log("Started recording")
                }
                canStopRecording() -> {
                    stopRecording()
                    recordBtn.apply {
                        text = "Start Recording"
                    }
                    logger.log("Stopped recording")
                }
                else -> logger.log("Video recording can't be toggled")
            }
        }

    }

Apparenty ‘isActive’ in logger.log("Main camera is ${if (isActive) "active" else "not active"}") is always false. Does anyone know how to activate it or any advices?
I initially had StreamServer displaying the camera videw in my phone and it works well. I thought maybe the camera can’t be set active because streamserver is using it so removed the streamserver and tried but still MainCamera can’t be set active. Please help, I need this for my university project!