Zabbix disables core dumps when adding encryption when compiling
This is ok on the zabbix server but not always preferred. The real problem is that agents also disable core dumps or else fail to start as can be seen in this ticket: ZBX-10542.

A better solution would be to have the option in the config file. This way when people needs a core dump they have the option to enable core dumps. Or at least they have a choice. I understand that the dump can be a security risk but sometimes coredumps are usefull and needed.