Hi,
We have recently started getting IOException when attaching password protected pdf's.
When we check the the upload directly the file is there but does not correspond to the original file size, which means it could be corrupt.
Normal files are uploading correctly.
osTicket v 1.10.4
OS: ubuntu 14.04.6
PHP: 5.6.37
FYI We have attempted to upgrade last year and it resulted in a catastrophic failure.