XML : Black Screen Above Elements

I'm having an awkward error, and do not have any clue about what's the cause. I'm working on a maintenance of an android map application, it was using GoogleMap API, but now I've changed it to MapLink API. One of the view is this one:

  <LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:background="@color/white"  android:orientation="vertical" >    <LinearLayout      android:layout_width="fill_parent"      android:layout_height="wrap_content"      android:orientation="horizontal"      android:weightSum="1">        <EditText          android:id="@+id/searchText"          android:layout_width="wrap_content"          android:layout_height="wrap_content"          android:layout_marginLeft="10dip"          android:layout_marginRight="10dip"          android:layout_marginTop="3dip"          android:ems="10"          android:hint="Busca"          android:maxLines="1"          android:layout_weight="0.85" />        <Button          android:id="@+id/searchBtn"          android:layout_width="32dp"          android:layout_height="32dp"          android:background="@drawable/magnifier13"          android:onClick="search" />    </LinearLayout>    <View      android:id="@+id/separator1"      android:layout_width="fill_parent"      android:layout_height="2dip"      android:background="@color/red" />    <RelativeLayout      android:layout_width="match_parent"      android:layout_height="0dip"      android:layout_weight="1" >          <br.com.maplink.map.MapTemplate          android:id="@+id/mapview"          android:layout_width="match_parent"          android:layout_height="match_parent">      </br.com.maplink.map.MapTemplate>          <ImageView          android:id="@+id/drag"          android:layout_width="wrap_content"          android:layout_height="wrap_content"          android:src="@drawable/androidpin64"          android:visibility="gone" />  </RelativeLayout>    <LinearLayout      android:layout_width="fill_parent"      android:layout_height="100dip"      android:orientation="vertical" >        <View          android:id="@+id/separator2"          android:layout_width="fill_parent"          android:layout_height="2dip"          android:background="@color/red" />        <EditText          android:id="@+id/txtEtiqueta"          android:layout_width="fill_parent"          android:layout_height="wrap_content"          android:layout_marginLeft="10dip"          android:layout_marginRight="10dip"          android:layout_marginTop="3dip"          android:ems="10"          android:hint="Etiqueta"          android:maxLines="1" >            <requestFocus />      </EditText>        <Button          android:onClick="create"          android:id="@+id/btnCadastrarPOI"          android:layout_width="fill_parent"          android:layout_height="wrap_content"          android:layout_marginLeft="10dip"          android:layout_marginRight="10dip"          android:paddingRight="10dip"          android:text="Concluído" />  </LinearLayout>    

When I click on the top textbox the keyboard just appear and when it's dismissed everything is normal, but when I click on the bottom textbox, the keyboard scroll the content page up and the content above the map goes off the view, when the keyboard is dismissed the content page scrolls back to it's original, but the content above the map is covered by a black frame, if I rotate the device or try to click on the top text box the black frame disappear. I've already tried to recreate the view on other file but it keep this problem, I've tried the same thing on other project and everything is working fine. Also, this problem only happen on landscape orientation;

Thanks.