[SCRIPT] SetGlobalVarInt not working

[serbusfish]

The scenario: you start in a map with a door that in the story is locked from the other side. You change map and get to the door in question and unlock it, go through it and now it is unlocked in the original map. This is what I did but it didnt work:

void OnStart()

{

SetGlobalVarInt("DRDoor",0);
CheckDRDoor();

}

void CheckDRDoor()

{
if(GetLocalVarInt("DRDoor") == 1)
{
SetLevelDoorLocked("level_wood_2", false);
}
}

In the second map once the door is unlocked I simply did

AddGlobalVarInt("DRDoor", 1);

But when I go back to the first map the door is still locked. The same type of script but a Local not GlobalVar worked in a different scenario so I thought it would work here to?