XML : Android Preview showing correct but running the app is not correct

Here is my xml. It previews correct when I am in this layout. When I go to my activity main I see only the buttons and no textViews. I appreciate any help. My content main xml code is listed first then my activity main xml is listed after.

  <?xml version="1.0" encoding="utf-8"?>  <LinearLayout      xmlns:android="http://schemas.android.com/apk/res/android"      xmlns:app="http://schemas.android.com/apk/res-auto"      xmlns:tools="http://schemas.android.com/tools"      android:layout_width="match_parent"      android:layout_height="match_parent"      android:orientation="horizontal">        <LinearLayout          android:layout_width="0dp"          android:layout_height="match_parent"          android:layout_weight="1"          android:orientation="vertical"          app:layout_behavior="@string/appbar_scrolling_view_behavior"          tools:context=".MainActivity"          tools:showIn="@layout/activity_main">            <TextView              android:layout_width="match_parent"              android:layout_height="wrap_content"              android:gravity="center_horizontal"              android:padding="4dp"              android:text="Team A"/>            <TextView              android:id="@+id/team_a_score"              android:layout_width="match_parent"              android:layout_height="wrap_content"              android:gravity="center_horizontal"              android:padding="4dp"              android:text="0"/>            <Button              android:layout_width="match_parent"              android:layout_height="wrap_content"              android:layout_margin="8dp"              android:onClick="addThreeForTeamA"              android:text="+3 Points"/>            <Button              android:layout_width="match_parent"              android:layout_height="wrap_content"              android:layout_margin="8dp"              android:onClick="addTwoForTeamA"              android:text="+2 Points"/>            <Button              android:layout_width="match_parent"              android:layout_height="wrap_content"              android:layout_margin="8dp"              android:onClick="addOneForTeamA"              android:text="Free Throw"/>        </LinearLayout>        <LinearLayout          android:layout_width="0dp"          android:layout_height="match_parent"          android:layout_weight="1"          android:orientation="vertical"          app:layout_behavior="@string/appbar_scrolling_view_behavior"          tools:context=".MainActivity"          tools:showIn="@layout/activity_main">            <TextView              android:layout_width="match_parent"              android:layout_height="wrap_content"              android:gravity="center_horizontal"              android:padding="4dp"              android:text="Team A"/>            <TextView              android:id="@+id/team_a_score"              android:layout_width="match_parent"              android:layout_height="wrap_content"              android:gravity="center_horizontal"              android:padding="4dp"              android:text="0"/>            <Button              android:layout_width="match_parent"              android:layout_height="wrap_content"              android:layout_margin="8dp"              android:onClick="addThreeForTeamA"              android:text="+3 Points"/>            <Button              android:layout_width="match_parent"              android:layout_height="wrap_content"              android:layout_margin="8dp"              android:onClick="addTwoForTeamA"              android:text="+2 Points"/>            <Button              android:layout_width="match_parent"              android:layout_height="wrap_content"              android:layout_margin="8dp"              android:onClick="addOneForTeamA"              android:text="Free Throw"/>        </LinearLayout>  </LinearLayout>    <?xml version="1.0" encoding="utf-8"?>  <android.support.design.widget.CoordinatorLayout      xmlns:android="http://schemas.android.com/apk/res/android"      xmlns:app="http://schemas.android.com/apk/res-auto"      xmlns:tools="http://schemas.android.com/tools"      android:layout_width="match_parent"      android:layout_height="match_parent"      android:fitsSystemWindows="true"      tools:context=".MainActivity">        <include layout="@layout/content_main"/>        <android.support.design.widget.AppBarLayout          android:layout_height="wrap_content"          android:layout_width="match_parent"          android:theme="@style/AppTheme.AppBarOverlay">            <android.support.v7.widget.Toolbar              android:id="@+id/toolbar"              android:layout_width="match_parent"              android:layout_height="?attr/actionBarSize"              android:background="?attr/colorPrimary"              app:popupTheme="@style/AppTheme.PopupOverlay"/>        </android.support.design.widget.AppBarLayout>            <android.support.design.widget.FloatingActionButton          android:id="@+id/fab"          android:layout_width="wrap_content"          android:layout_height="wrap_content"          android:layout_gravity="bottom|end"          android:layout_margin="@dimen/fab_margin"          android:src="@android:drawable/ic_dialog_email"/>    </android.support.design.widget.CoordinatorLayout>    

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