Boolean Trouble, Please help....Boolean does not flip another boolean

Script A checks every frame to see if Script B has a boolean true, so that script A can flip its own boolean, every frame. Script B flips the bool, script A logs a debug line implying that it caught the flip, but the action which is supposed to trigger when the bool is true, (which would un-flip it afterwards) does not happen. Setting the boolean on script A manually, does trigger the action, just no idea why it would debug that and then not actually flip it.

"BS" is a script which, Clears player preferences, then re-saves a lot of structures, when a boolean, "saving", is true. When BS is done saving, it flips "saving" back to false.

I need "Slot" to recognize that "saving" has been flipped, so that "slot" can flip its own boolean on, called "flip", so that the slot can re-run its SaveItem function, which would be turning "flip" back off.

I can only get the slot to recognize that "bs.saving"

Here is the Update from the Slot script:

     public void Update(){
 
         if (bs.saving == true) {
             Debug.Log ("See BS SAVING true on slot"+gameObject.name);
             flip = true;
             Debug.Log ("Set FLIP to TRUE because BS was SAVING"+gameObject.name);
         }
         if (flip){
             Debug.Log ("WE ARE FLIPPED, ARE WE OCCUPIED?"+gameObject.name);
             //SaveItem ();
             if (slotOccupied == true) {
                 Debug.Log ("FLIPPED and OCCUPIED now SETTING BOOL AND SAVEITEM"+gameObject.name);
                 PlayerPrefsX.SetBool (gameObject.name + "Bool", true);
                 SaveItem ();
             }
 
         }
     }

Here is the update from the BuildingSaver script: void Update(){

         if (saving) {
             PlayerPrefs.DeleteAll ();
             buildings = 0;
             PlayerPrefs.SetInt ("howManyBuildings", 0);
             saving = false;
             SaveAll ();
         }
     }