Hi, everyone sometimes when is necessary to change the user ticket owner the screen si frozen and donĀ“t allow to change the user.
I've never experienced this problem myself. Maybe its the old version of PHP that you are running. Are you seeing any error messages? (in the mysql slow query log or php error log)
ntozier I will gonna check de logs and upgrade for PHP 7.2, and after will upgrade this issue giving you an answer thanks for your reply
Look forward to it. ?