When upgrading from 1.10.4 to 1.10.5, all seems good until you click on a link to a ticket, and it does nothing.
When upgrading from 1.10.4 to 1.11 the website simply gives a "Access Denied" error.
The following method was used when attempting to upgrade in both instances:
Backup database and files
Take system offline
Overwrite (recursive) all files in the upload directory, maintaining the directory hierarchy
Check ost-config.php file correct.
When using 1.10.5 files the system is changed to online mode. All tickets are there, however their links are broken/non-existent so clicking on them results in no action.
When using 1.11 files, system cannot be put in online mode as server responds with "Access denied".
Simply unzipping the /upload folder from osTicket-v1.10.4.zip restores osTicket server to working order.
Please advise.