AppMetrics not writing data to InfluxDb?

Question

.NET

Hello.
I decided to smoke a metric for ASP.NET Core and try to screw it on the basis of Appmetrics + InfluxDb + Grafana. In general, the actions are the same
everywhere . When starting a web application in Influx, a database is created in which about 10 tablets are created. I connect Grafan as usual. First I add a data source (Influx) then I import the dashboard. Everything seems to be clear according to the instructions, but Grafana shows that there is no activity, although I personally keep F5 pressed for several seconds.

I suspect it’s not even about Grafan, but that AppMetrics does not write data to InfluxDb. Empirically found out that the plates are empty. At the same time, let me remind you that when the application is first launched, these signs are created automatically, which indicates that AppMetrics has a connection. What could be the reason? It makes no sense to spread the code, because. it is completely identical to what is indicated in the article