Hello,
we cannot change the Task Due Date with Awsome because when we clic on the inline-editor of the field, nothing happens.
A TASK Due Date can only be set during creation, because the Task Editor doesn’t containt the field, so this is the only way to plan differently the task.

As a workaround we can go back to the old layout (shift+O), but it would be better if this could work with the new layout

Here our versions:
osTicket v1.15.3.1 // osTicket-1.15.3.1-Awesome-101
PHP 7.3.12 // MySQL 10.4.10 // Apache/2.4.41 (Unix) OpenSSL/1.1.1d PHP/7.3.12 mod_perl/2.0.8-dev Perl/v5.16.3 web server
Thank you for your help