Trusted Functions in Reader on a Windows 11 tablet.

I have a form with a button to check through the form and save it using two field values combined as the name. For this I created a Save As Trusted Function (following instructions from here: https://acrobatusers.com/tutorials/how-save-pdf-acrobat-javascript/) which all worked fine on my Windows 10 PC using DC Pro. The idea is to run the forms from a tablet at the entrance to our building. When I transferred everything across to the tablet running windows 11 the Save As function no longer works. I have placed my Trusted Function script in what I understand to be the correct folders:

C:\Prgram Files\Adobe\Acrobat DC\Acrobat\Javascripts 

and:

C:\Users\*this user*\AppData\Roaming\Adobe\Acrobat\DC\Javascripts

I get this error when I press the save button:

“Error During Save – NotAllowedError: Security settings prevent access to this propert or method.”

Here are my scripts.

Folder Lever – trusted function script:

var mySaveAs = app.trustedFunction(

    function (oDoc, cPath, cFlName) {

        cPath = cPath.replace(/([^/])$/, "$1/");

        try {

            app.beginPriv();

            oDoc.saveAs(cPath + cFlName);

            app.endPriv();

        }

                                catch (e) {

            app.alert("Error During Save - " + e);

        }

    });

Save As function from the button:

            var recordFileName =

                this.getField("Company").valueAsString + " " + this.getField("startDate").valueAsString;

            console.println("recordFileName = " + recordFileName);

            //set all fields as read only

            for (var k = 0; k < this.numFields; k++) {

            this.getField(getNthFieldName(k)).readonly = true;

            };

            //save file to folder

            var directory = "/c/Users/Tech Department/LGT&OH Ltd/Health & Safety - Venue Information - Documents/Site Inductions/Completed Induction Forms/"

                if (typeof(mySaveAs) == "function") {

                    mySaveAs(this, directory, recordFileName + ".pdf");

                                                                                app.openDoc("/c/Users/Tech Department/LGT&OH Ltd/Health & Safety - Venue Information - Documents/Site Inductions/Master Forms/Contractor Induction.pdf");

                } else {

                    app.alert("Missing Save Fucntion. Please contact forms administrator");

                };

        }