Rpi4 and lg tv, hdmi issues

I have a lg tv 660s with 3 hdmi inputs Hdmi1 is arc. Rpi4 is connected to hdmi3 input.
Issue : When I first power up the system and tv the rpi appear as conencted to hdmi1 because it is written on tv near hdmi raspberyy, if I click on hdmi3 nothing is shown or I see volumio in a big resolution. After I reset rpi everything is ok, rpi is switching corect to hdmi input3…
The picture is taken after restart where is ok. Before that under hdmi1 appears the raspberry and simplink … Not hdmi 3…
As a note the hdmi1 arc is cinnected to a receiver av but this is turned off.