We have had several triggers (all based on the same trigger from the same template) getting stuck in a problem state, where they do not recover when receiving data.

The log shows that it wants to change the trigger value:

  1889:20161125:095104.182 In zbx_process_trigger() triggerid:47043 value:1(0) new_value:0
  1889:20161125:095104.182 End of zbx_process_trigger():SUCCEED flags:2

However, when it comes to the zbx_save_trigger_changes-call, only the "lastchange"-field is modified:

  1889:20161125:095104.184 In zbx_save_trigger_changes()
  1889:20161125:095104.184 query [txnlev:1] [update triggers set lastchange=1480063864 where triggerid=47043;
]
  1889:20161125:095104.185 End of zbx_save_trigger_changes()

(The full log of the update run is attached in zabbix-update-log.txt.)

In addition, there is some inconsistency in the display state of this trigger. It is only visible when looking directly trigger status page (/zabbix/tr_status.php). When looking at the problem page (/zabbix/zabbix.php?action=problem.view), the trigger doesn't show up.

I tried a restart of the Zabbix-server process, but that did not clear the problem.