Artillery Overwatch error: The ability can't be triggered?

Hello!
I am having an issue: This ability works fine as a command ability, or so it seems, but as an infantry ability (giving this to an officer unit), it keeps insisting that I'm triggering the ability "too close".
Which I don't understand, since I don't believe there's a minimum casting distance in such an ability!

Here's the Attribute editor code, maybe someone can figure this out?

<group name="ability_bag">
<group name="action_list">
<list name="end_self_actions">
</list>
<list name="end_target_actions">
</list>
<list name="start_self_actions">
</list>
<list name="start_target_actions">
<template_reference name="action" value="action\trigger_dca_action">
<string name="dca_action_name" value="UI\Airstrike_Warning_Smoke" />
<float name="duration" value="10" />
<bool name="is_terrain_only" value="True" />
<uniqueid name="id" value="1073747467" />
</template_reference>
<template_reference name="action" value="action\overwatch_action">
<group name="area_info">
<float name="angle_left" value="0" />
<float name="angle_right" value="0" />
<enum name="area_type" value="circle" />
<float name="radius" value="20" />
</group>
<float name="duration" value="45" />
<float name="interval" value="3.25" />
<float name="interval_min" value="0.5" />
<float name="interval_multiplier" value="0.85" />
<float name="interval_reset_delay" value="2" />
<group name="target_info">
<template_reference name="target_info" value="type_ability_target_type\has_all_in_list">
<list name="target_infos">
<template_reference name="info" value="type_ability_target_type\enemy">
</template_reference>
<template_reference name="info" value="type_ability_target_type\has_any_in_list">
<list name="target_infos">
<template_reference name="info" value="type_ability_target_type\has_unit_type">
<enum name="unit_type" value="infantry" />
</template_reference>
</list>
</template_reference>
</list>
</template_reference>
</group>
<list name="trigger_actions">
<template_reference name="action" value="action\off_map_artillery">
<float name="num_salvo" value="3" />
<float name="radius" value="4" />
<float name="source_offset_x" value="1" />
<float name="source_offset_y" value="70" />
<float name="source_offset_z" value="1" />
<float name="time_range_between_shells_max" value="0.25" />
<float name="time_range_between_shells_min" value="0.125" />
<instance_reference name="weapon_name" value="weapon\colonial_elite\explosive_weapons\light_artillery\le_ig_18_howitzer_75mm_mp" mod="897b1642921046e1a54b787a024932a6" />
<uniqueid name="id" value="1073747468" />
</template_reference>
</list>
<uniqueid name="id" value="1073747469" />
</template_reference>
</list>
</group>
<enum name="activation" value="targeted" />
<bool name="can_interrupt" value="False" />
<bool name="can_target_in_fow" value="True" />
<float name="caster_close_in_distance" value="2" />
<bool name="casters_can_evacuate" value="False" />
<group name="cost">
<float name="action" value="0" />
<float name="command" value="0" />
<float name="fuel" value="0" />
<float name="manpower" value="0" />
<float name="munition" value="65" />
<float name="popcap" value="0" />
</group>
<string name="cursor_ghost_blueprint" value="" />
<float name="cursor_ghost_blueprint_angle" value="0" />
<bool name="disable_combat" value="True" />
<bool name="disable_when_active" value="True" />
<float name="duration_time" value="-1" />
<bool name="enable_in_building" value="False" />
<bool name="enable_in_vehicle" value="False" />
<bool name="engage_combat" value="False" />
<float name="entity_busy_time" value="0" />
<float name="facing_angle" value="5" />
<bool name="facing_ignore" value="True" />
<float name="final_close_in_distance" value="0" />
<bool name="fire_and_forget" value="True" />
<bool name="garrison_target" value="False" />
<bool name="has_speech_code" value="True" />
<float name="initial_delay_time" value="0" />
<bool name="initial_recharge" value="False" />
<bool name="is_default_action" value="False" />
<bool name="move_back" value="False" />
<float name="move_back_distance" value="10" />
<float name="range" value="55" />
<bool name="range_ignore" value="False" />
<float name="recharge_time" value="65" />
<bool name="refundable" value="True" />
<bool name="require_no_shot_block" value="False" />
<enum name="shared_timer" value="" />
<bool name="shared_timer_player_wide" value="False" />
<group name="speech_code_2">
<string name="code_1" value="" />
<string name="code_2" value="" />
<string name="code_3" value="" />
</group>
<group name="speech_code_3">
<string name="code_1" value="art" />
<string name="code_2" value="" />
<string name="code_3" value="" />
</group>
<enum name="squad_caster" value="squad" />
<enum name="target" value="tp_position" />
<group name="target_special_validation">
<template_reference name="target_special_validation" value="type_ability_target_type\not">
<group name="target_info">
<template_reference name="target_info" value="type_ability_target_type\is_command_sector">
</template_reference>
</group>
</template_reference>
</group>
<float name="toggled_recharge_time_off" value="0" />
<float name="toggled_recharge_time_on" value="0" />
<group name="ui_cursor">
<string name="cursor_bad" value="modal_ability_cancel" />
<string name="cursor_good" value="modal_attack" />
<string name="cursor_nonmodal_good" value="" />
</group>
<group name="ui_info">
<locstring name="extra_text" value="908" mod="897b1642921046e1a54b787a024932a6" />
<locstring name="help_text" value="899" mod="897b1642921046e1a54b787a024932a6" />
<string name="hotkey_name" value="" />
<icon name="icon_name" value="Icons_abilities_ability_aef_106mm_barrage" />
<string name="overlay_name" value="" />
<bool name="reveal_for_decryption" value="False" />
<locstring name="screen_name" value="898" mod="897b1642921046e1a54b787a024932a6" />
<icon name="icon_alternate_name" value="" />
<locstring name="brief_text" value="0" />
<locstring name="help_text_alternate" value="0" />
<locstring name="screen_name_alternate" value="0" />
<locstring name="screen_name_short" value="0" />
</group>
<locstring name="ui_usage_txt" value="0" />
<bool name="validate_actions" value="True" />
<list name="global_self_actions">
</list>
<list name="requirements">
<template_reference name="required" value="requirements\required_player_upgrade">
<enum name="reason" value="usage_and_display" />
<locstring name="ui_name" value="0" />
<bool name="is_present" value="True" />
<float name="max_completed" value="100" />
<float name="min_completed" value="1" />
<instance_reference name="upgrade_name" value="upgrade\custom_commanders\elite_colonials\4naval" mod="897b1642921046e1a54b787a024932a6" />
</template_reference>
</list>
<enum name="ability_super" value="tp_artillery" />
<int name="ui_position" value="34" />
<bool name="ui_mini_map_capture" value="True" />
<bool name="facing_ignore_during_active" value="False" />
<instance_reference name="ui_range" value="ui_reticule\ability_range_artillery_barrage" />
<instance_reference name="ui_reticule" value="ui_reticule\ability_target_artillery_barrage" />
<float name="ui_reticule_radius_min" value="10" />
<float name="ui_reticule_radius_max" value="10" />
<enum name="pending_ability_out_of_range_behaviour" value="chase" />
<enum name="ui_group" value="group_primary" />
<string name="ui_targetable_sm_key" value="" />
<string name="ui_targetable_on_key" value="" />
<string name="ui_targetable_off_key" value="" />
<enum name="ui_targetable_receiver" value="local" />
<enum name="ui_combine_type" value="intersection" />
<enum name="ui_group_cast_type" value="single" />
<enum_table name="ui_modal_highlight">
<bool name="world_sector" value="False" />
<bool name="map_sector" value="False" />
<bool name="map_sector_hq_link_extender" value="False" />
</enum_table>
<list name="requirements_target">
</list>
<template_reference name="targeted_ability_option" value="options\none">
</template_reference>
<enum name="ui_direction_requirement" value="nondirectional" />
<instance_reference name="cursor_ghost_ebp" value="" />
<bool name="can_cast_whilst_constructing" value="False" />
<list name="requirements_self_recharge">
</list>
<bool name="can_cast_outside_active_battle_field" value="False" />
<bool name="ability_super_event_cue" value="False" />
</group>