There might be something wrong in the xml. Can you share the file?
<?xml version="1.0" encoding="utf-8" ?>
<ModelInfo version="1.1"guid="{f5d05f83-d9b2-496c-159e-63a2e24b21eb}">
<Animation guid="f993fae1-e8b1-47b5-940d-5cb1b624f0cc" name="Link_Deployment_L" type="Standard"/>
<Animation guid="b09319d2-ec96-445e-9395-ea6ef3182542" name="Link_Deployment_R" type="Standard"/>
<Animation guid="6AE01FE9-9BFD-4234-9932-36D4B8D65B5F" name="Link_Bend_L" type="Standard"/>
<Animation guid="D06BC1D3-4F30-4E0F-90E0-32199272D27B" name="Link_Bend_R" type="Standard"/>
<Animation guid="344B7B33-23CA-4A80-8C2A-9303E2F08189" name="Link_Horizontal_Top" type="Standard"/>
<Animation guid="335BBE27-3C59-4D0D-B6E0-9B793BA03387" name="Link_Vertical_Top" type="Standard"/>
<Animation guid="3510798D-EE26-4264-A532-0E81959618BB" name="Wheel_Rotation" type="Standard"/>
<Animation guid="B4E328E8-6D7B-4EE8-AE90-9B88F69D4545" name="Wheel_Orientation" type="Standard"/>
<IKConstraint>
<Node>Rotation_Base<>
<Heading/>
</IKConstraint>
<IKConstraint>
<Node>EmptyPitch</Node>
<Bank min="-12,6" max="9,3"/>
</IKConstraint>
<IKConstraint>
<Node>Empty01</Node>
<X min="1,00" max="8,21 "/>
</IKConstraint>
<IKConstraint>
<Node>Empty02</Node>
<X min="1,00" max="8,98"/>
</IKConstraint>
<IKConstraint>
<Node>Empty03</Node>
<X min="1,00" max="10,21 "/>
</IKConstraint>
<IKConstraint>
<Node>Empty04</Node>
<X min="1,00" max="11,30"/>
</IKConstraint>
<IKConstraint>
<Node>EmptyPivot</Node>
<Heading/>
</IKConstraint>
<IKConstraint>
<Node>EmptySliderTop</Node>
<Y min="4,79" max="6,70"/>
</IKConstraint>
<IKConstraint>
<Node>GroundEmpty</Node>
<Y min="-4,70" max="-4,70"/>
<X min="-10.0" max="20.0"/>
</IKConstraint>
<Behaviors>
<Include ModelBehaviorFile="Asobo\Misc\SimObjects.xml"/>
<Component ID="Hood">
<UseTemplate Name="ASOBO_Jetway_Hood_Left_Bend">
<ANIM_NAME>Link_Bend_L</ANIM_NAME>
<PERCENT_PER_SECOND>50</PERCENT_PER_SECOND> <!-- Speed of the animation -->
</UseTemplate>
<UseTemplate Name="ASOBO_Jetway_Hood_Left_Deployment">
<ANIM_NAME>Link_Deployment_L</ANIM_NAME>
<DEGREE_PER_SECOND>20</DEGREE_PER_SECOND>
<MIN_ANGLE>0</MIN_ANGLE>
<MAX_ANGLE>45</MAX_ANGLE>
</UseTemplate>
<UseTemplate Name="ASOBO_Jetway_Hood_Right_Bend">
<ANIM_NAME>Link_Bend_R</ANIM_NAME>
<PERCENT_PER_SECOND>50</PERCENT_PER_SECOND> <!-- Speed of the animation -->
</UseTemplate>
<UseTemplate Name="ASOBO_Jetway_Hood_Right_Deployment">
<ANIM_NAME>Link_Deployment_R</ANIM_NAME>
<DEGREE_PER_SECOND>20</DEGREE_PER_SECOND>
<MIN_ANGLE>0</MIN_ANGLE>
<MAX_ANGLE>45</MAX_ANGLE>
</UseTemplate>
<UseTemplate Name="ASOBO_Jetway_Hood_Top_Horizontal">
<ANIM_NAME>Link_Horizontal_Top</ANIM_NAME>
<PERCENT_PER_SECOND>100</PERCENT_PER_SECOND> <!-- Speed of the animation -->
</UseTemplate>
<UseTemplate Name="ASOBO_Jetway_Hood_Top_Vertical">
<ANIM_NAME>Link_Vertical_Top</ANIM_NAME>
<PERCENT_PER_SECOND>100</PERCENT_PER_SECOND> <!-- Speed of the animation -->
</UseTemplate>
<UseTemplate Name="ASOBO_Jetway_Wheel_Roll">
<ANIM_NAME>Wheel_Rotation</ANIM_NAME>
<WHEEL_RADIUS>0.61</WHEEL_RADIUS>
</UseTemplate>
<UseTemplate Name="ASOBO_Jetway_Wheel_Orientation">
<ANIM_NAME>Wheel_Orientation</ANIM_NAME>
<MIN_ANGLE>-90</MIN_ANGLE>
<MAX_ANGLE>90</MAX_ANGLE>
<MIN_TO_MAX>1</MIN_TO_MAX> <!-- 1 if the anim starts at min and ends at max -->
<SPEED>30</SPEED> <!-- degrees per sec -->
<SMOOTH_TIME_FACTOR>0.3</SMOOTH_TIME_FACTOR>
</UseTemplate>
</Component>
</Behaviors>
</ModelInfo>