Sync not working on empty field

Your software
My Mautic version is:


My PHP version is:

PHP Version 7.1.33

Your problem
My problem is:
Date field not syncing when empty. It updates during sync when i send a value but does not update if the value is null.

These errors are showing in the log:
no errors found

Steps I have tried to fix the problem:
Deleted and recreated the custom field.