Random "Failed to call resource" errors and plugin restarts

[Mksmpm]

The bug occurs when dashbords are opened or refreshed, totally random.
"Failed to call resource" and "Plugin unavailable" errors appear.
Not a timeout issue, errors come out immediately.
Refreshing a page helps most of the time.

Dbug logs attached. zabbixlog.txt

Software versions

Grafana	Zabbix	Grafana-Zabbix Plugin
7.4.5	5.2.1	4.1.5

[imbonobow]

Same problem here

[alexanderzobnin]

Is it happening in 4.2.1 as well?

[alexanderzobnin]

Confirmed. Caused by the Unicode characters in the item key.

[restorepoint1]

The issue still present on 4.2.2. Disabling data alignment solves the problem

[victortamotsu]

@restorepoint1

Same here. Disabling data alignment did it.

Grafana	Zabbix	Grafana-Zabbix Plugin
8.1.1	5.4.0	4.2.2

[michael630angelo]

I have the same issue with Grafana-Zabbix data source. How do you disable data alignment to solve the issue? Thanks.