[VU+ Duo2] updated vix 3.0 to hades v12 HDMI-CEC stopped working

[KioTronic]

Hello... i have a little bit different problem with the actually hades on my Vu+ Solo.

i tested different Images (OpenATV, OpenPli, VTi, Black and now OpenVix). OpenVix is for me the best Image. it works perfect on my Solo. But HDMI CEC isnt working correcty. When i put my Solo in StandBy, my TV go in StandBy.. Thats right. But when i put my TV in Standby, my Solo dont go in Standby. in the config from HDMI CEC but is it on. Can everybody help me? Its the latest version from Hades...

Sorry for my bad english...