Hello all.
I have a router with 6.40.3 where I can see FP counters incrementing on both Tx and Rx on some interfaces, while if I check under IP Settings I see that FastPath is not active nor the counters increment.
Are those packets using FastPath on those interfaces or not?

if I check under IP Settings I see that FastPath is not active nor the counters increment.

Have a look at FastTrack status and stats at /ip settings, and also bridge FastPath status and stats at /interface bridge settings.

Thanks andriys,
I forgot to mention: neither Fasttrack is enabled under /ip settings and stats are empty.
I only have a bridge as a loopback with no ports configured, so that cannot be the source of that packets, in fact those stats are empty.

If you have a device which has FastPath support, then you will always see on interfaces list FP RX traffic. If driver supports FP, then it receives packets on FastPath but does not use it afterwards. Already on next step FP is not used.

Thank you strods for explanation.
However in my case I also have packets incrementing in output.
I attach an excerpt from a screenshot to better explain. Is it the same behaviour of counting also for Tx packets?