Material AlertDialog height issue

Question

For some reason the height of MaterialAlertDialogBuilder became larger than its content. I am not sure if this is a padding bottom.

fun Context.materialDialog(
    title: String?,
    message: String?,
    positiveLabel: String?,
    positiveListener: DialogInterface.OnClickListener?,
    negativeLabel: String?,
    negativeListener: DialogInterface.OnClickListener?,
    isCancelable: Boolean
) = MaterialAlertDialogBuilder(this).apply {
    title?.let {
        setTitle(title)
    }
    message?.let {
        setMessage(message)
    }
    positiveLabel?.let {
        setPositiveButton(it, positiveListener)
    }
    negativeLabel?.let {
        setNegativeButton(it, negativeListener)
    }
    setCancelable(isCancelable)
}


alertDialog = materialDialog(
                getString(R.string.to_usd, _getAsset.name),
                null,
                getString(R.string.navigation_close),
                { dialog: DialogInterface, _: Int -> dialog.dismiss() },
                null,
                null,
                false
            ).create()

            convertAction.setOnClickListener {

                val linearLayoutCompat = LinearLayoutCompat(this@Activity)

                val usdAmount = AppCompatTextView(this@Activity).apply {
                    width = ViewGroup.LayoutParams.MATCH_PARENT
                    gravity = Gravity.CENTER_HORIZONTAL
                    text = getString(R.string.sampleUsd)
                }

                val cryptoAmountEditText = AppCompatEditText(this@Activity).apply {
                    inputType = InputType.TYPE_CLASS_NUMBER or InputType.TYPE_NUMBER_FLAG_DECIMAL
                    hint = getString(R.string.field_amount, _getAsset.name)
                    isSingleLine = true
                    doAfterTextChanged {
                        var coins = text.toString()
                        try {
                            if (coins.isEmpty()) coins = "0.00"
                            val cryptoVal = coins.toDouble()
                            usdAmount.text = getString(
                                R.string.converted_to_usd,
                                NumbersUtil.formatFractional(
                                    cryptoVal * _getAsset.metricsDomain.marketDataDomain.priceUsd!!
                                )
                            )
                        } catch (e: Exception) {
                            usdAmount.text = getString(R.string.invalid_amount, _getAsset.name)
                        }
                    }
                }

                with(linearLayoutCompat) {
                    orientation = LinearLayoutCompat.VERTICAL
                    setPadding(30, 0, 30, 0)
                    addView(cryptoAmountEditText)
                    addView(usdAmount)
                }

                alertDialog.setView(linearLayoutCompat)
                alertDialog.show()

            }

Style XML

<style name="Theme.App" parent="Theme.MaterialComponents.DayNight">
<item name="materialAlertDialogTheme">@style/AppDialogTheme</item>
</style>

 <!-- AlertDialog theme on both light and night mode -->

<style name="DialogButtonStyle" parent="Widget.MaterialComponents.Button.TextButton.Dialog">
        <item name="android:textColor">@color/primaryDarkAccent</item>
    </style>

    <style name="AppDialogTheme" parent="ThemeOverlay.MaterialComponents.MaterialAlertDialog">
        <item name="buttonBarPositiveButtonStyle">@style/DialogButtonStyle</item>
        <item name="buttonBarNegativeButtonStyle">@style/DialogButtonStyle</item>
    </style>

However this only happens on this activity, on my splash screen the height is correct just like a regular and simple AlertDialog.

Android API version: 21

Material Library version: 1.5.0

Device: Samsung J1