Post 7.2.5 upgrade "Page Not Found" rendering issue

[GarrettCO]

After upgrading to 7.2.5 all of a sudden there is intermittent rendering with various dashboard widgets that show Page Not Found, and in some instance force logs out of the GUI. Did not see anythning in the release notes prior to upgrade if there is any concerns or other prerequisite that needs to be updated.

Does not matter of the browser (Chrome, Firefox, etc) the same issue occurs. This will go away when the page is refreshed, but that already is causing concerns to the stability of using Zabbix dashboards.

Any information or insight to resolve?

[kanpace]

Facing the same issue. Anybody has a workaround or a link to an upstream bugreport?

[Taomyn]

It's being caused by later unsupported versions of MySQL/MariaDB, at least this was the case for me: https://support.zabbix.com/browse/ZBX-26331

I was running Zabbix on an Raspberry Pi4 which died, so I built a new machine using a small NUC and hosted it as an LXC under Proxmox. I stuck to Debian, but for some reason I got it into my head to use the latest version of MariaDB from their repo rather than the older version from Debian. The rebuild and restore went well except for this message. When I found the bug report I backed up the database again, removed MariaDB, then installed the Debian release. It's all fine now.

Oh and the reason for the Zabbix server not telling me that the version of MariaDB was not compatible - from a long time ago I had the AllowUnsupportedDBVersions=1 option enabled in the server config which I have now disabled.