APPTec BAB module reads KNXBus correctly, but writing is received but doesn't result in action

[ralfvd]

When reading from the KNXBus, everything seems to be received and processed correctly, but when writing to the KNXBus (either manually via a Flow or pushing the on/off button of a configured KNX lamp), it is received by the KNX Bus (according to the ETS diagnostics), but there is no action on the light itself.

Some logging of start-up and creating a couple of actions:

1/1/62 was triggered by a flow, with different possible On/Off $00 $01 etc entries.
in the logs is one correct Read, this was not sent by Homey.

Then 1/1/80 is triggered by the action card of the light itself.

[info] "2025-08-19T19:38:42.965Z" 'Loading knx: KNXnet/IP protocol implementation for Node(>=6.x), version: 2.5.4'
2025-08-19T19:38:43.505Z [log] [KNXApp] KNXApp is running...
2025-08-19T19:38:43.650Z [log] [KNXApp] Homey IP + Parsed IP 192.168.0.55:80 192.168.0.55
[KNX interface manager] Scanning for KNX interfaces in subnet
[KNX interface manager] New interface APPMODULE KNXNet/IP
[Interface: APPMODULE KNXNet/IP] Creating interface with IP 192.168.0.99
[KNX interface manager] Current interfaces: [ 'APPMODULE KNXNet/IP' ]
2025-08-19T19:38:43.965Z [log] [ManagerDrivers] [Driver:knx_humidity_sensor] [Device:d0580ad4-a419-4555-88c6-0343171b07e1] LV badkamer init, has data { id: 'e04d35e9-bda0-4145-9476-39499d2b299c' }
2025-08-19T19:38:43.972Z [log] [ManagerDrivers] [Driver:knx_humidity_sensor] [Device:d0580ad4-a419-4555-88c6-0343171b07e1] Using interface: APPMODULE KNXNet/IP
[Interface: APPMODULE KNXNet/IP] Trying to (re)connect
[Interface: APPMODULE KNXNet/IP] KNX Disconnected
2025-08-19T19:38:44.041Z [log] [ManagerDrivers] [Driver:knx_light] [Device:17ea62ae-5070-4ba1-9e8f-42b0130eb8f2] Licht badkamer init, has data { id: 'd110d376-d2dd-4eb9-9922-9a245e355205' }
2025-08-19T19:38:44.044Z [log] [ManagerDrivers] [Driver:knx_light] [Device:17ea62ae-5070-4ba1-9e8f-42b0130eb8f2] Using interface: APPMODULE KNXNet/IP
[Interface: APPMODULE KNXNet/IP] Trying to (re)connect
2025-08-19T19:38:44.051Z [log] [ManagerDrivers] [Driver:knx_light] [Device:5c12f397-57e9-4408-941c-5584ec7d0ac9] Lamp toilet beneden init, has data { id: '98b16a02-85c5-4f74-96a4-14a05e16c5d6' }
2025-08-19T19:38:44.053Z [log] [ManagerDrivers] [Driver:knx_light] [Device:5c12f397-57e9-4408-941c-5584ec7d0ac9] Using interface: APPMODULE KNXNet/IP
[Interface: APPMODULE KNXNet/IP] Trying to (re)connect
2025-08-19T19:38:44.059Z [log] [ManagerDrivers] [Driver:knx_light] [Device:936e1bdf-f1e1-4fef-af9e-093c891ca088] Licht Douchekamer init, has data { id: '138f5cf6-3055-44d6-bbe0-967aa16c82da' }
2025-08-19T19:38:44.061Z [log] [ManagerDrivers] [Driver:knx_light] [Device:936e1bdf-f1e1-4fef-af9e-093c891ca088] Using interface: APPMODULE KNXNet/IP
[Interface: APPMODULE KNXNet/IP] Trying to (re)connect
2025-08-19T19:38:44.067Z [log] [ManagerDrivers] [Driver:knx_light] [Device:f17aafaf-ff6e-41d8-96b7-1ef3937d329b] KNX Light init, has data { id: 'bbcfd00d-3b19-4835-be2f-7fb3d4e88203' }
2025-08-19T19:38:44.069Z [log] [ManagerDrivers] [Driver:knx_light] [Device:f17aafaf-ff6e-41d8-96b7-1ef3937d329b] Using interface: APPMODULE KNXNet/IP
[Interface: APPMODULE KNXNet/IP] Trying to (re)connect
[Interface: APPMODULE KNXNet/IP] KNX Connected
2025-08-19T19:38:47.161Z [err] [ManagerDrivers] [Driver:knx_humidity_sensor] [Device:d0580ad4-a419-4555-88c6-0343171b07e1] Error: knx_read_timeout: 4/1/120
at Timeout._onTimeout (/app/lib/KNXInterface.js:223:37)
at listOnTimeout (node:internal/timers:569:17)
at process.processTimers (node:internal/timers:512:7)
2025-08-19T19:38:47.169Z [log] [ManagerDrivers] [Driver:knx_light] [Device:17ea62ae-5070-4ba1-9e8f-42b0130eb8f2] Error: knx_read_timeout: 1/4/120
at Timeout._onTimeout (/app/lib/KNXInterface.js:223:37)
at listOnTimeout (node:internal/timers:569:17)
at process.processTimers (node:internal/timers:512:7)
2025-08-19T19:38:50.166Z [log] [ManagerDrivers] [Driver:knx_light] [Device:5c12f397-57e9-4408-941c-5584ec7d0ac9] Error: knx_read_timeout: 1/4/80
at Timeout._onTimeout (/app/lib/KNXInterface.js:223:37)
at listOnTimeout (node:internal/timers:569:17)
at process.processTimers (node:internal/timers:512:7)
2025-08-19T19:38:50.169Z [log] [ManagerDrivers] [Driver:knx_light] [Device:936e1bdf-f1e1-4fef-af9e-093c891ca088] Error: knx_read_timeout: 1/4/110
at Timeout._onTimeout (/app/lib/KNXInterface.js:223:37)
at listOnTimeout (node:internal/timers:569:17)
at process.processTimers (node:internal/timers:512:7)
2025-08-19T19:38:53.166Z [log] [ManagerDrivers] [Driver:knx_light] [Device:f17aafaf-ff6e-41d8-96b7-1ef3937d329b] Error: knx_read_timeout: 1/4/62
at Timeout._onTimeout (/app/lib/KNXInterface.js:223:37)
at listOnTimeout (node:internal/timers:569:17)
at process.processTimers (node:internal/timers:512:7)
[KNX interface manager] Closed search UDP socket
[KNX interface manager] Current interfaces: [ 'APPMODULE KNXNet/IP' ]

[Interface: APPMODULE KNXNet/IP] Writing $00 to 1/1/62
[Interface: APPMODULE KNXNet/IP] Writing 0 to 1/1/62
2025-08-19T19:39:48.227Z [log] [ManagerDrivers] [Driver:knx_light] [Device:f17aafaf-ff6e-41d8-96b7-1ef3937d329b] received 1/4/62 <Buffer 00>
[Interface: APPMODULE KNXNet/IP] Writing On to 1/1/62
[Interface: APPMODULE KNXNet/IP] Writing 01 to 1/1/62

[Interface: APPMODULE KNXNet/IP] Writing false to 1/1/80
[Interface: APPMODULE KNXNet/IP] Writing true to 1/1/80
[Interface: APPMODULE KNXNet/IP] Writing 50 to 6/0.0
[warn] 2025-08-19 19:45:49.139 Invalid address - missing 3rd token
[Interface: APPMODULE KNXNet/IP] Writing true to 1/1/80
[Interface: APPMODULE KNXNet/IP] Writing false to 1/1/80
[Interface: APPMODULE KNXNet/IP] Writing true to 1/1/80
[Interface: APPMODULE KNXNet/IP] Writing 50 to 6/0.0
[warn] 2025-08-19 19:45:51.120 Invalid address - missing 3rd token
[Interface: APPMODULE KNXNet/IP] Writing true to 1/1/80
[Interface: APPMODULE KNXNet/IP] Writing false to 1/1/80
[Interface: APPMODULE KNXNet/IP] Writing true to 1/1/80
[Interface: APPMODULE KNXNet/IP] Writing 50 to 6/0.0
[warn] 2025-08-19 19:45:52.102 Invalid address - missing 3rd token
[Interface: APPMODULE KNXNet/IP] Writing true to 1/1/80
[Interface: APPMODULE KNXNet/IP] Writing false to 1/1/80

I am not sure where the 'writing 50 to 6/0.0' comes from. I don't have any group addresses configured starting with 6/
As you can see, the events are received on the bus: