Status Bar sets my Constraint Layout dimensions to 0

Question

I'm having a very strange case. In my application, depending on the fragment I want to open, I show or hide the Status Bar (by status bar I mean the system bar, the one with the time).

The problem comes when I do the action of showing it, and if I'm in the main fragment of my Bottom Navigation and I navigate to another fragment where it should be shown, this fragment is not shown, because its container is assigned 0 dp despite being in match_parent.

The view of one of the fragments that is giving me problems is as follows:

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/white">

    <FrameLayout
            android:id="@+id/fragment_menu__container__search"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@drawable/blue_horizontal_gradient"
            android:orientation="horizontal"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent">

        <androidx.appcompat.widget.AppCompatEditText
                android:id="@+id/fragment_menu__input__search"
                style="@style/fontFamilyCustom_regular"
                android:textColor="@color/black_text"
                android:textColorHint="@color/gray_hours_text"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginStart="@dimen/twelve"
                android:layout_marginTop="@dimen/twelve"
                android:layout_marginEnd="@dimen/twelve"
                android:layout_marginBottom="@dimen/twelve"
                android:hint="@string/menu__label__search"
                android:paddingStart="@dimen/thirty_two"
                android:imeOptions="actionSearch"
                android:inputType="text"
                android:background="@drawable/bg_rectangle_round_corners"
                android:textSize="@dimen/text_medium"
                android:paddingTop="@dimen/eight"
                android:paddingBottom="@dimen/eight"/>

        <androidx.appcompat.widget.AppCompatImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical"
                android:layout_marginStart="@dimen/twenty"
                app:srcCompat="@drawable/ic_search" />


    </FrameLayout>

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/fragment_menu__rv__items_menu"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/fragment_menu__container__search" />

    <ProgressBar
        android:theme="@style/CustomProgressBar"
        android:id="@+id/fragment_menu__pb__loading"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

The methods used to show or hide the Status Bar are as follows:

fun hideStatusBar() {
        window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS)
        window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS)
        window.statusBarColor = Color.TRANSPARENT
        window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
        window?.decorView?.requestApplyInsets()
    }

fun setStatusBar(window: Window) {
        window.decorView?.systemUiVisibility =
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR
            } else {
                View.SYSTEM_UI_FLAG_VISIBLE
            }
        window.decorView.requestApplyInsets()
    }

And the container where I load them is located in the MainActivity in a FrameLayout:

<FrameLayout
        android:id="@+id/activity_main__container__content"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toTopOf="@id/activity_main__view__ads_banner"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/activity_main__toolbar__component"/>

The thing is that if I am in the foreground with the application where the fragment is not being displayed, I switch to the background and return to the foreground, the fragment is displayed with the size that the match_parent assigns to it.