Hi, consider that "connections" and "sessions" are different things, so you should plot also the "CurrentSockets" metrics to be sure.
But assuming that there is something wrong, what further information could you provide to help us try to reproduce the case?
Do you notice any other inconsistency, by comparing the other metrics? For instance, the counts of http, https, ws, wss, and handshaking sockets should match the "CurrentSockets" metrics.