[Critical] Trying to set ComboS[] on layer 2 - ZC Terminates

[ZoriaRPG]

Here is the codeblock:

if ( SWITCHHOOK_USE_LAYER_2 ) { //2
	for ( int q = 0; q < 176; q++ ) { 	//Pass through the screen combos to find a match...
		int cmb2 = GetLayerComboI(2,q); 	//loading them along the way...
		cmb2X = ComboX(q);	//The combo number for the for loop pass...
		cmb2Y = ComboY(q);	//... X and Y
		int loc = ComboAt(cmb2X,cmb2Y);

		if ( ( comboF && cmb2 == comboF ) || ( !comboF && cmb2 == CF_SWITCHHOOK ) ) { 	
						//If D0 is assigned a value above 0, check to see if it matches
						//that combo inherent flag, otherwise check if it matches the one
						//assigned to the constant CF_SWITCHSHOT.
			
						//If it does....
			//int cmb_under = 
			
			//if ( switching ) {
			if ( ComboCollision(loc,l) ) {	//and there is collision between that combo and the hookshot...
				
			//!We need to check every layer...too..for combos on layers higher than 0. (?)
				l->DeadState = WDS_DEAD;	//Kill the hookshot.
				
				if ( sfx ) Game->PlaySound(sfx); //Play the sound defined in the item script,
				if ( !sfx && SFX_SWITCHHOOK ) Game->PlaySound(SFX_SWITCHHOOK);  //or the constant if the item editor arg isn't set.
					
				//Store Link's starting position.
				lx = CenterLinkX();
				ly = CenterLinkY();
					
				//Store the switchshot combo to move.
				cmb2X = ComboX(q);	//The combo number for the for loop pass...
				cmb2Y = ComboY(q);	//... X and Y
				cmb2D = GetLayerComboD(2,q); //The original data of the switchhook combo.
				cmb2S = GetLayerComboS(2,q); //The original solidity of the switchshot combo. 
				cmb2C = GetLayerComboC(2,q); //The original CSet.
				
				//Store the combo datum for the cumbo that Link is on. 
				
				cmb2LD = GetLayerComboD(2,ComboAt(Link->X, Link->Y)); //The combo under Link.
				cmb2LS = GetLayerComboS(2,ComboAt(Link->X, Link->Y)); //The solidity of the combo under Link.
				cmb2LX = GridX(lx); //The X position
				cmb2LY = GridY(ly); //The Y position
				cmb2L = ComboAt(cmb2LX,cmb2LY); //The screen index for that combo (Nth of 276).
				cmb2LC = GetLayerComboC(2,ComboAt(Link->X, Link->Y));
				
					
				//Change the combo where Link WAS, to the switchshot combo.
				SetLayerComboD(2,cmb2L,cmb2D); //Set its data
				SetLayerComboS(2,cmb2L,cmb2S); //and solidity.
				
				//!Setting solidity on layer 2 crashes ZC....BUT
				//!the solidity seems to be preserved anyway.
				
				SetLayerComboC(2,cmb2L,cmb2C); //and CSet.
				
				
				//Move Link to where the old switchshot combo that we moved, WAS.
				Link->X = cmb2X;
				Link->Y = cmb2Y;
				
					
				//Move the switchshot combo to where LINK was before he moved...
				SetLayerComboD(2,q,cmb2LD); //Set the combo data
				SetLayerComboS(2,q,cmb2LS); //and the solidity.
				SetLayerComboC(2,q,cmb2LC); //and CSet.

				
				this->Script = 0; //Free the FFC for later use.
				this->Data = 0;
				Quit();
			}
		}
	}
}