Converting to units per 1s divinding by $__interval

Hey,
I’m using Fedora 40, and I have installed Grafana 11.1.4.

This problem arises when trying to upgrade to the 11.1.4 version, it works in the previous version I had installed.

I’m trying to calculate the rate of requested and received files. To do that, I’m grouping by sum and calculating the derivative over a time interval ($__interval).

I might get results such as 5 files per 2s (an example of a value for $__interval). Because it’s a bit confusing, I convert that to files per 1s, which means I have to divide the result by the $__interval:

This way I get a nice graph with files per 1 seconds.

This used to work in an older version of Grafana, however this is no longer working in version 11.1.4, what should I do instead? Is there a standard way to do this?