Could be. I checked mine (cups with TTN), I don’t have graphs, but I see traffic in 868.5MHz (band 125kHz)
[jeff@MikroTik] > /iot lora traffic/print where freqhz=868500
# TIME GWID MSGTYPE DEVADDR MVER FCNT CRC TYPE NETID JOINEUI DEVEUI DEVNONCE JOINNONCE FREQHZ MOD BAND DAT... COD... IFC... TXMODE COU... RFC... RSSI SNR SNRMIN SNRMAX RXCRC RFPOW
5 202... 503139535B664750 Join-ac... 31 BB A7 20 RFU Error Rx 13548811 868500 LoRa 125... SF 7 4/6 2 108... 1 -10... -12.00 -14.25 -7.50 31278
16:...
16 202... 503139535B664750 Join-ac... 41 28 88 1E RFU Error Rx 12734518 868500 LoRa 125... SF 8 4/8 2 310... 1 -10... -14.50 -16.75 -9.25 24688
16:...
19 202... 503139535B664750 Unconfi... 26 0B EA 4E LoRaWAN R1 492 Ok Rx 868500 LoRa 125... SF 8 4/5 2 422... 1 -81.00 8.75 7.00 11.25 29709
17:...
20 202... 503139535B664750 Unconfi... 26 0B EA 4E LoRaWAN R1 19 Tx 868500 LoRa 125... SF 8 4/5 Tim... 422... 0 16
17:...
21 202... 503139535B664750 Confirm... BB 47 87 9B RFU 51131 Error Rx 868500 LoRa 125... SF 7 4/8 2 134... 1 -10... -11.00 -14.25 -8.25 48731
17:...
22 202... 503139535B664750 Proprie... RFU Error Rx 868500 LoRa 125... SF 7 ?/? 2 408... 1 -10... -11.50 -14.50 -7.00 7957
18:...
23 202... 503139535B664750 Join-re... RFU Error Rx CC 3D 36 AC 9... 1C 63 61 6A 2... 45630 868500 LoRa 125... SF 7 ?/? 2 286... 1 -10... -11.50 -14.25 -7.50 59092
18:...
24 202... 503139535B664750 Proprie... RFU Error Rx 868500 LoRa 125... SF 7 4/6 2 101... 1 -10... -11.50 -13.75 -8.50 19769
18:...
25 202... 503139535B664750 Confirm... C5 CB FE 7C RFU 2642 Error Rx 868500 LoRa 125... SF 7 4/6 2 334... 1 -10... -11.25 -13.50 -8.00 20642
19:...
26 202... 503139535B664750 Join-re... RFU Error Rx 03 4D 0D 6A 7... DD 6D 40 B6 1... 17260 868500 LoRa 125... SF 8 4/7 2 245... 1 -10... -14.00 -17.00 -10.00 4388
19:...
27 202... 503139535B664750 Unconfi... 26 0B EA 4E LoRaWAN R1 497 Ok Rx 868500 LoRa 125... SF 7 4/5 2 335... 1 -86.00 7.50 3.25 10.50 33751
19:...
28 202... 503139535B664750 Rejoin-... RFU Error Rx AB 0D F5 F0 E... 868500 LoRa 125... SF 7 4/5 2 456... 1 -10... -11.25 -13.75 -8.25 16574
19:...