Last starting 11

[Gizel]

hello everybody, i have a question about this panel:

	  <!--last starting XI-->
  <container class="subsection_box" id="cos4" default_item="true" minimum_height="30" priority="2" default_height="-250">
         <translation id="title" translation_id="348972" type="use" value="Last Starting 11[COMMENT: club overview panel, details of the last selected match team for a given club]" />
	  <layout class="stick_to_sides_attachment" alignment="all" inset="0" layout_children="true" />

		<container class="horizontal_adaptive_container" ix="LXIC" inset="0" offset="0" gap="5">

			<widget class="fixture_lineup_table" id="FxLu" default_width="-2" minimum_width="125" priority="2" mode="stripe_rows" stretch_to_fit_rows="true"/>

			<widget class="pitch_with_tactics" id="pwtc" default_width="-3" minimum_width="200" priority="1" navigation_disabled="true" icon_flags="use_player_kits_back,drop_initial_if_possible,show_name,show_number,show_role_duty_labels">
				[b][color="#FF0000"]<boolean id="vertical" value="true" />[/color][/b]
				<boolean id="pitch_dont_draw_indicators" value="true" />
				<integer id="pitch_length_percentage" value="85" />
				<flags id="pitch_alignment" value="centre_x, top"/>
				<real id="pitch_length_multiplier" value="1.05" />
			</widget>
		</container>

		<widget class="text" id="noma">
			<translation id="text" translation_id="349015" type="use" value="No match played." />
		</widget>
  </container>

that's my Last Starting 11 (slightly modified, but anyway the question can refers to original panel aswell).

so, anybody knows why if i try to change that parameter in red above from "true" to "false" ( <boolean id="vertical" value="true" /> ), my coloured boxes ( i believe that's the boxes' adress: <container class="bordered_box" appearance="boxes/tactics pitch info/paper" id="nmcn"> ) around player's names disappears?

here two pics that explains my issue:

<boolean id="vertical" value="true" />

<boolean id="vertical" value="false" />

thank you