"Zabbix Problems" unacknowledged filtering error

[renanyuu]

Describe the bug
When filtering unacknowledged only one problem is shown (a very old one that not exists in zabbix).
When filtering acknowledged problems are shown regardless of acknowledgement but not the problem above.
Expected behavior
acknowledged and unacknowledged should show problems that are and are not acknowledged.

Screenshots
https://imgur.com/a/27Exr6b

Network data
Not sure how to produce this

Software versions

Grafana	Zabbix	Grafana-Zabbix Plugin
6.0.0	3.4.2	3.10.0
This worked before we upgraded the plugin to the latest version yesterday. Not sure what version we had before upgrade.

[alexanderzobnin]

Hm, I think it's related to #678 as well.