KC868-A16 esp32 board (A16)as upgrade of a Homevision Controller?

[hjahend]

On my a16 board with ESPHome software I am now also testing the Kincony 433MH receiver and transmitter.
Added antennas to them for a sufficient range.
Learned a (pronto) hex-code set from my 433MHz RF equipment (Marmitek HR10 remote plus 433MHz TM12 tranciever). These units are since many years reliable in operation to switch and dim lights via X10.
Got from the the remote the hex code set (several times) for light:’ B1 ON’. Put all ll in YAML-code as follows:

# 433MHz receiver configuration entry
remote_receiver:
pin: 2
dump: pronto
tolerance: 50%
filter: 250us
idle: 4ms

# 433MHz transmitter configuration entry example
remote_transmitter:
pin: 13
carrier_duty_percent: 100%

- platform: gpio
name: "input16"
id: vrij
pin:
pcf8574: pcf8574_hub_in_2
number: 7
mode: INPUT
inverted: false
on_state:
- remote_transmitter.transmit_pronto:
data: '0000 006D 0021 0000 0016 0016 0016 0045 0016 0045 0016 0045 0016 0016 0016 0016 0016 0016 0016 0016 0016 0046 0016 0016 0016 0016 0016 0016 0016 0045 0016 0045 0016 0045 0016 0045 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0016 0045 0016 0045 0016 0045 0016 0045 0016 0045 0016 0045 0016 0045 0016 0045 0016 009B 06C3'
repeat:
times: 2
wait_time: 40ms

When testing with Input 16 (it should instruct a lamp B1 to go ON), I get this log-message:
14:21:14][D][binary_sensor:036]: 'input16': Sending state ON
[14:21:14][D][remote.pronto:101]: Send Pronto: frequency=38kHz
[14:21:14][D][remote.pronto:106]: Send Pronto: intros=66
[14:21:14][D][remote.pronto:107]: Send Pronto: repeats=0
[14:21:14][E][remote.pronto:109]: Inconsistent data, not sending
[14:21:14][E][remote_transmitter:117]: Empty data

Nothing happens with the lamp (stays OFF). What could be wrong?
(Note: the lamps still responds fine to the x10 remote HR10).