Timesheet Apply Button Not Saving

Overview:
The site is a CRM/ERP system built in PHP with a custom front-end using jQuery. It allows users to manage orders, schedules, and timesheets. Users should be able to edit their timesheets and click Apply to save those changes.

Currently, on the live site (timesheet.php), users can edit timesheet entries, but clicking Apply does not save any changes. The same functionality works correctly in the sandbox site.

Problem Summary:

Live site (timesheet.php): Clicking Apply reloads data but does not save changes.

Sandbox site (crmtimesheet.php): Clicking Apply saves changes as expected.

The code appears to be the same across both environments.

No errors are shown in the browser console.

Likely issue: Apply button is not triggering the save action on the live site.

Task:

Investigate why Apply is not saving changes on the live site.

Ensure that when users click Apply, their timesheet edits are saved to the database.

The functionality should match how it works in the sandbox.