rotation quits after 2 full uses

Hehe, found the problem. it was too far down the link order. Once I linked it next to the root in order it worked fine. I didn't expect that to happen. Learn something new all the time. Just glad I found the problem.
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Hello. The script below is in the door on a non phys vehicle. It works fine for about 2 uses of opening and closing, then stops. The only thing that continues to work is the llSetScale() part of it.
Is this a bug or have I done something silly with it? The vehicle is only 59 prims.
Any Ideas?
Here is the code for all you pro coders to look at.

rotation Inverse(rotation r)
{
    r.x = -r.x;
    r.y = -r.y;
    r.z = -r.z;
    return r;
}
vector CloseRot =  <0.0,0.0,270.0>;
vector OpenRot = <180,298.15,90>;    // change this, if it needs to open in different direction
                                      // example   <90.0,0.0,0.0>    or  <0.0,0.0,-90>   etcetera
rotation open_rot;
rotation close_rot;
float move = -0.0;   //  this is to move object up and to the side so it looks like it pivots on the edge
                    //  make the number bigger if the object is longer

default
{
    state_entry()
    {
        open_rot = llEuler2Rot((DEG_TO_RAD * OpenRot));
        close_rot = llEuler2Rot((DEG_TO_RAD * CloseRot));
    }

    touch_start(integer total_number)
    { // this is the open state
        if (llDetectedKey(0) == llGetOwner())
        {
            llMessageLinked(LINK_ALL_OTHERS, -1024, "", NULL_KEY);
            llSetScale (<2.4,2.363,2.363>);
            vector pos = llGetLocalPos();
            pos.z = pos.z + move;
            pos.x = pos.x - move;   // if the object moves to the side, change this into pos.y
                                    // also if it moves to the front, change - into +
            llSetPrimitiveParams([PRIM_ROTATION, open_rot * Inverse(Inverse(llGetLocalRot())*llGetRot()), PRIM_POSITION, pos]);
            state open;
        }
    }
}

state open
{
    touch_start(integer total_number)
    { // this is the closed state
        if (llDetectedKey(0) == llGetOwner())
        {
            llMessageLinked(LINK_ALL_OTHERS, -1024, "", NULL_KEY);
            llSetScale (<2.5,2.5,2.5>);
            vector pos = llGetLocalPos();
            pos.z = pos.z - move;
            pos.x = pos.x + move;  // if the object moves to the side, change this into pos.y
                                // also if it moves to the front, change - into +
            llSetPrimitiveParams([PRIM_ROTATION, close_rot * Inverse(Inverse(llGetLocalRot())*llGetRot()), PRIM_POSITION, pos]);
            state  default;
        }
    }
}