Yes Node 15 is there with all emonTX off.
Remove node 15 form config does not help.
2020-10-27 09:51:19,686 INFO MQTT Publishing: emonhub/rx/5/values 0,3,3,111.24000000000001,13,0,0,0,0,0,0
2020-10-27 09:51:20,376 DEBUG SerialTx1 34730 NEW FRAME : MSG:5904,Vrms:112.93,P1:-1796,P2:2650,P3:-1,P4:7,E1:14881,E2:2600,E3:143,E4:2905,pulse:0
2020-10-27 09:51:20,377 DEBUG SerialTx1 34730 Timestamp : 1603817480.375853
2020-10-27 09:51:20,377 DEBUG SerialTx1 34730 From Node : 9
2020-10-27 09:51:20,378 DEBUG SerialTx1 34730 Values : [0, 112.93, -1796, 2650, -1, 7, 14881, 2600, 143, 2905, 0]
2020-10-27 09:51:20,378 DEBUG SerialTx1 34730 Sent to channel(start)' : ToEmonCMS
2020-10-27 09:51:20,379 DEBUG SerialTx1 34730 Sent to channel(end)' : ToEmonCMS
2020-10-27 09:51:20,402 DEBUG RFM2Pi 34731 NEW FRAME : OK 15 69 66 85 85 142 126 85 85 85 85 95 85 85 85 85 85 85 85 173 170 170 170 241 85 85 85 182 170 170 170 101 32 101 32 101 32 85 85 85 85 (-68)
2020-10-27 09:51:20,403 DEBUG RFM2Pi 34731 Timestamp : 1603817480.401846
2020-10-27 09:51:20,404 DEBUG RFM2Pi 34731 From Node : 15
2020-10-27 09:51:20,404 DEBUG RFM2Pi 34731 Values : [1431650885, 323.98, 21845, 21845, 21855, 21845, 1431655765, 2863311533, 1431655921, 2863311542, 82.93, 82.93, 82.93, 1431655765]
2020-10-27 09:51:20,404 DEBUG RFM2Pi 34731 RSSI : -68
2020-10-27 09:51:20,405 DEBUG RFM2Pi 34731 Sent to channel(start)' : ToEmonCMS
2020-10-27 09:51:20,405 DEBUG RFM2Pi 34731 Sent to channel(end)' : ToEmonCMS
2020-10-27 09:51:20,445 DEBUG SerialTx0 34732 NEW FRAME : MSG:5904,Vrms:112.27,P1:0,P2:0,P3:10,P4:0,E1:0,E2:-8,E3:164,E4:-29,pulse:0
2020-10-27 09:51:20,446 DEBUG SerialTx0 34732 Timestamp : 1603817480.445419
2020-10-27 09:51:20,447 DEBUG SerialTx0 34732 From Node : 10
2020-10-27 09:51:20,447 DEBUG SerialTx0 34732 Values : [0, 112.27, 0, 0, 10, 0, 0, -8, 164, -29, 0]
2020-10-27 09:51:20,447 DEBUG SerialTx0 34732 Sent to channel(start)' : ToEmonCMS
2020-10-27 09:51:20,448 DEBUG SerialTx0 34732 Sent to channel(end)' : ToEmonCMS
2020-10-27 09:51:20,476 DEBUG SerialTx2 34733 NEW FRAME : MSG:5904,Vrms:113.17,P1:-2150,P2:2656,P3:0,P4:34,E1:14184,E2:2602,E3:185,E4:1750,pulse:0
2020-10-27 09:51:20,477 DEBUG SerialTx2 34733 Timestamp : 1603817480.476009
2020-10-27 09:51:20,477 DEBUG SerialTx2 34733 From Node : 8
2020-10-27 09:51:20,477 DEBUG SerialTx2 34733 Values : [0, 113.17, -2150, 2656, 0, 34, 14184, 2602, 185, 1750, 0]
2020-10-27 09:51:20,478 DEBUG SerialTx2 34733 Sent to channel(start)' : ToEmonCMS
2020-10-27 09:51:20,478 DEBUG SerialTx2 34733 Sent to channel(end)' : ToEmonCMS
2020-10-27 09:51:20,498 DEBUG MQTT Publishing: emon/emontx3cm16/MSG 0
2020-10-27 09:51:20,498 DEBUG MQTT Publishing: emon/emontx3cm16/Vrms 112.93
2020-10-27 09:51:20,500 DEBUG MQTT Publishing: emon/emontx3cm16/Grid2 -1796
2020-10-27 09:51:20,500 DEBUG MQTT Publishing: emon/emontx3cm16/Solar2 2650
2020-10-27 09:51:20,501 DEBUG MQTT Publishing: emon/emontx3cm16/Air2 -1
2020-10-27 09:51:20,502 DEBUG MQTT Publishing: emon/emontx3cm16/Furnace 7
2020-10-27 09:51:20,503 DEBUG MQTT Publishing: emon/emontx3cm16/7 14881
2020-10-27 09:51:20,503 DEBUG MQTT Publishing: emon/emontx3cm16/8 2600
2020-10-27 09:51:20,504 DEBUG MQTT Publishing: emon/emontx3cm16/9 143
2020-10-27 09:51:20,505 DEBUG MQTT Publishing: emon/emontx3cm16/10 2905
2020-10-27 09:51:20,506 DEBUG MQTT Publishing: emon/emontx3cm16/11 0
2020-10-27 09:51:20,507 INFO MQTT Publishing: emonhub/rx/9/values 0,112.93,-1796,2650,-1,7,14881,2600,143,2905,0
2020-10-27 09:51:20,611 DEBUG MQTT Publishing: emon/emontx3cm17/MSG 0
2020-10-27 09:51:20,612 DEBUG MQTT Publishing: emon/emontx3cm17/Vrms 112.27
2020-10-27 09:51:20,612 DEBUG MQTT Publishing: emon/emontx3cm17/Dryer1 0
2020-10-27 09:51:20,613 DEBUG MQTT Publishing: emon/emontx3cm17/Dryer2 0
2020-10-27 09:51:20,614 DEBUG MQTT Publishing: emon/emontx3cm17/Washer 10
2020-10-27 09:51:20,614 DEBUG MQTT Publishing: emon/emontx3cm17/Microwave 0
2020-10-27 09:51:20,615 DEBUG MQTT Publishing: emon/emontx3cm17/7 0
2020-10-27 09:51:20,615 DEBUG MQTT Publishing: emon/emontx3cm17/8 -8
2020-10-27 09:51:20,616 DEBUG MQTT Publishing: emon/emontx3cm17/9 164
2020-10-27 09:51:20,617 DEBUG MQTT Publishing: emon/emontx3cm17/10 -29
2020-10-27 09:51:20,617 DEBUG MQTT Publishing: emon/emontx3cm17/11 0
2020-10-27 09:51:20,617 INFO MQTT Publishing: emonhub/rx/10/values 0,112.27,0,0,10,0,0,-8,164,-29,0
2020-10-27 09:51:20,618 DEBUG MQTT Publishing: emon/emontx3cm15/MSG 0
2020-10-27 09:51:20,618 DEBUG MQTT Publishing: emon/emontx3cm15/Vrms 113.17
2020-10-27 09:51:20,619 DEBUG MQTT Publishing: emon/emontx3cm15/Grid1 -2150
2020-10-27 09:51:20,619 DEBUG MQTT Publishing: emon/emontx3cm15/Solar1 2656
2020-10-27 09:51:20,620 DEBUG MQTT Publishing: emon/emontx3cm15/Air1 0
2020-10-27 09:51:20,620 DEBUG MQTT Publishing: emon/emontx3cm15/Garage 34
2020-10-27 09:51:20,620 DEBUG MQTT Publishing: emon/emontx3cm15/7 14184
2020-10-27 09:51:20,621 DEBUG MQTT Publishing: emon/emontx3cm15/8 2602
2020-10-27 09:51:20,621 DEBUG MQTT Publishing: emon/emontx3cm15/9 185
2020-10-27 09:51:20,621 DEBUG MQTT Publishing: emon/emontx3cm15/10 1750
2020-10-27 09:51:20,622 DEBUG MQTT Publishing: emon/emontx3cm15/11 0
2020-10-27 09:51:20,622 INFO MQTT Publishing: emonhub/rx/8/values 0,113.17,-2150,2656,0,34,14184,2602,185,1750,0
2020-10-27 09:51:20,623 DEBUG MQTT Publishing: emon/junk/MSG 1431650885
2020-10-27 09:51:20,623 DEBUG MQTT Publishing: emon/junk/Vrms 323.98
2020-10-27 09:51:20,623 DEBUG MQTT Publishing: emon/junk/P1 21845
2020-10-27 09:51:20,624 DEBUG MQTT Publishing: emon/junk/P2 21845
2020-10-27 09:51:20,624 DEBUG MQTT Publishing: emon/junk/P3 21855
2020-10-27 09:51:20,624 DEBUG MQTT Publishing: emon/junk/P4 21845
2020-10-27 09:51:20,625 DEBUG MQTT Publishing: emon/junk/E1 1431655765
2020-10-27 09:51:20,625 DEBUG MQTT Publishing: emon/junk/E2 2863311533
2020-10-27 09:51:20,625 DEBUG MQTT Publishing: emon/junk/E3 1431655921
2020-10-27 09:51:20,626 DEBUG MQTT Publishing: emon/junk/E4 2863311542
2020-10-27 09:51:20,626 DEBUG MQTT Publishing: emon/junk/T1 82.93
2020-10-27 09:51:20,626 DEBUG MQTT Publishing: emon/junk/T2 82.93
2020-10-27 09:51:20,627 DEBUG MQTT Publishing: emon/junk/T3 82.93
2020-10-27 09:51:20,627 DEBUG MQTT Publishing: emon/junk/pulse 1431655765
2020-10-27 09:51:20,627 DEBUG MQTT Publishing: emon/junk/rssi -68
2020-10-27 09:51:20,628 INFO MQTT Publishing: emonhub/rx/15/values 1431650885,323.98,21845,21845,21855,21845,1431655765,2863311533,1431655921,2863311542,82.93,82.93,82.93,1431655765,-68
2020-10-27 09:51:24,426 DEBUG RFM2Pi 34734 NEW FRAME : OK 5 0 0 3 0 3 0 117 43 130 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (-0)
2020-10-27 09:51:24,428 DEBUG RFM2Pi 34734 Timestamp : 1603817484.426661
2020-10-27 09:51:24,428 DEBUG RFM2Pi 34734 From Node : 5
2020-10-27 09:51:24,429 DEBUG RFM2Pi 34734 Values : [0, 3, 3, 111.25, 13, 0, 0, 0, 0, 0, 0]
2020-10-27 09:51:24,429 DEBUG RFM2Pi 34734 Sent to channel(start)' : ToEmonCMS
2020-10-27 09:51:24,429 DEBUG RFM2Pi 34734 Sent to channel(end)' : ToEmonCMS
2020-10-27 09:51:24,460 DEBUG MQTT Publishing: emon/emonpi/HotTub1 0
2020-10-27 09:51:24,462 DEBUG MQTT Publishing: emon/emonpi/HotTub2 3
2020-10-27 09:51:24,463 DEBUG MQTT Publishing: emon/emonpi/power1pluspower2 3
2020-10-27 09:51:24,463 DEBUG MQTT Publishing: emon/emonpi/vrms 111.25
2020-10-27 09:51:24,464 DEBUG MQTT Publishing: emon/emonpi/t1 13
2020-10-27 09:51:24,465 DEBUG MQTT Publishing: emon/emonpi/t2 0
2020-10-27 09:51:24,466 DEBUG MQTT Publishing: emon/emonpi/t3 0
Does that help any?