Steps to reproduce:

• It just happens suddenly and at random times
• I monitor an oracle database machine using ODBC. I use the official template with some minor edits including removing any non-ODBC items and providing a "SELEC 1 from tab" item.
• Zabbix, after so many days and no any new changes, suddenly stopped storing any new history for a host.
• When I use "Test" button for any item, I do get a value. The item does have a History storage period (730 days). However when I do "Execute now" or let it execute automatically (interval of 1 minute) it does not store the new values!
• The same template is linked to other hosts with no host-specific edits. Other hosts are working fine currently.
• It is very rate to happen, but this is not the first time. It had happened with other host (using the same template). That time I had re-created the host with the same configurations and the new host started making history (the old one did not!).
• Note: The used template is attached to this issue.

Result:

• Zabbix suddenly stopped recording history for the items of one of the hosts

Expected:

Zabbix should not stop recording history for items without configuring it to do so.{}