Can't view hostname after upgrade

[asanfilippo]

Hello everyone,
After upgrading Grafana to v10.2 from v7.1.5 we can’t visualize the following panel:

The query is trying to get the zabbix_agent hostname and before the upgrade it was working fine. Is there a way to fix this, maybe with a different panel visualization?

Thank you in advance for your help

[bernardolankheet]

Hello asanfilippo.

Check if the Fields field is as “numeric fields”, change it to “Last value”, as it is using text type, it returns as nodata.