on-for-timer issue

[handy80]

Hi,
on-for-timer command not working properly
I set in FHEM:
set sh_AmbienteLicht on-for-timer 360

in the event monitor it looks like this:
2019-12-08 13:55:29 TASMOTA_DEVICE sh_AmbienteLicht on-for-timer
2019-12-08 13:55:29 TASMOTA_DEVICE sh_AmbienteLicht transmission-state: outgoing publish sent
2019-12-08 13:55:29 TASMOTA_DEVICE sh_AmbienteLicht transmission-state: incoming publish received
2019-12-08 13:55:29 TASMOTA_DEVICE sh_AmbienteLicht ergebnis-power: off
2019-12-08 13:55:29 TASMOTA_DEVICE sh_AmbienteLicht transmission-state: incoming publish received
2019-12-08 13:55:29 TASMOTA_DEVICE sh_AmbienteLicht off

and in the broker I can see this:
/SmartHome/Dusche/LichtDuscheAmbiente/cmnd/Power
payload: on-for-timer 360

and nothing is happening in my SONOFF basic