Grafana showing [server:instance] and [server\instance]

Hi guys.

Does anybody can explain me why Grafana is showing information like [server:instance] and [server\instance] for the same SQL Server instance on version 2016 and above?

All data stored is on [server:instance] filter, but nothing is shown on [server\instance] at variable filter on Grafana dashboard.

I’ve been trying to filter it by REGEX in order to not show [server\instance] on dashboard filter, but without success.

Anyone can help?

Thanls in advance.