Using Beatrix can cause the game to crash

[Albeoris]

There is no suitable animation or dialog and Beatrix does not participate in the scene, which leads to a crash of the game.
It happened at the end of Memoria. It is possible that meet the problem elsewhere. Be careful.

NullReferenceException: Object reference not set to an instance of an object
at EBin.getvobj (.Obj obj, Int32 type) [0x00000] in :0
at EBin.getvi () [0x00000] in :0
at EBin.expr_jumpToSubCommand (Int32 arg0) [0x00000] in :0
at EBin.expr () [0x00000] in :0
at EBin.jumpToCommand (Int32 arg0) [0x00000] in :0
at EBin.next (Int32 arg0) [0x00000] in :0
at EBin.ad3 (Int32 arg0) [0x00000] in :0
at EBin.ProcessCode (.ObjList objList) [0x00000] in :0
at EventEngine.ProcessEvents () [0x00000] in :0
at EventEngine.ServiceEvents () [0x00000] in :0
at HonoluluFieldMain.FF9FieldMapMain (Int32 MapNo) [0x00000] in :0
at HonoluluFieldMain.FF9FieldLocationMain (Int32 LocNo) [0x00000] in :0
at HonoluluFieldMain.HonoUpdate () [0x00000] in :0
at HonoBehaviorSystem.Update () [0x00000] in :0

[wrongstuff]

Also occurs in Kuja's castle when selecting a party for Oeilvert.

Occurs at Oeilvert at the door at the beginning

[Tirlititi]

It occurs everytime the script asks for a field object based on the party members.

In EventEngine.cs:

    public Obj GetObjUID(Int32 uid)
    {
        if (uid == Byte.MaxValue)
            return this.gCur;
        if (uid == 250)
            uid = this._context.controlUID;
        else if (uid >= 251 && uid < Byte.MaxValue)
            uid = this._context.partyUID[uid - 251];
        ObjList objList = this._context.activeObj;
        while (objList != null && objList.obj.uid != uid)
            objList = objList.next;

        return objList?.obj;
    }

If Beatrix is in the party, the related "partyUID" object is an empty object without any functions/model related to it.

A possible temporary fix can be made in SetupPartyUID:

    private void SetupPartyUID()
    {
        Byte[] numArray1 = new Byte[9] {0, 6, 3, 1, 4, 5, 7, 2, 8};
        Byte[] numArray2 = new Byte[9] {0, 3, 7, 2, 4, 5, 1, 6, 8};
        Int32 num = 0;
        for (Int32 index = 0; index < 4; ++index)
            this._context.partyUID[index] = Byte.MaxValue;
        for (Int32 index = 0; index < 4; ++index)
        {
            Int32 partyMember = this.eTb.GetPartyMember(index);
            if (partyMember >= 0) {
                // If Beatrix is in the team, we make it so the engine thinks it's another member instead
                if (partyMember == 8) {
                    if (!partychk(1))
                        partyMember = 1;
                    else if (!partychk(2))
                        partyMember = 2;
                    else if (!partychk(3))
                        partyMember = 3;
                    else 
                        partyMember = 0;
                }
                num |= 1 << numArray2[partyMember];
            }
        }
        Int32 index1 = 0;
        Int32 index2 = 0;
        while (num != 0)
        {
            if ((num & 1) != 0)
            {
                this._context.partyUID[index1] = (Byte)((UInt32)(this.sSourceObjN - 9) + numArray1[index2]);
                ++index1;
            }
            ++index2;
            num >>= 1;
        }
    }

EDIT: I'm not sure if it will fix the crash in Memoria (right before Necron's fight) because it's a bit more complicated there. It should fix the bugs in Kuja's castle, Oeilvert, Ipsen Castle...

[Albeoris]

I add this fix to the Memoria but need to check CD3 where Steiner and Beatrix fighting together.

[iamelsun]

Hi where can I apply the fix Tirlititi provided?