Problem with repeating instant metrics with prometheus

I use grafana 6.7.4

So I’ve made a dashboard with a repeating panel. I use prometheus to query the metrics.

My panel is a table that show instant metrics (only the latest) with two columns one for the value and the other one for the legend.

But when I repeat this panel, my panel will have duplicate metrics.
Those metrics are the same but from different times like if I didn’t set the instant option.

How can I show only the latest metrics on my dashboard with a repeating table panel ?