Live view doenst work

[jacare0000]

Hi everyone.

Thats an amazing project and i am trying this for my brother wedding!
I Started test it and it is working good.
I can take the picture and print, but the live view doenst work.
I think it can be related to the camera i am using.
Someone know how to make it working?
If it is not possible there is any other ideia?
Maybe use the picamera for preview and dslr for taking picture? (I know it will not be exactly the same, but it will bê better. Even with some similar issues i didnt find any solution, please let me know If i am wrong. I only Can use gphoto2 comandline, other options doenst work for me, could ir be a problem?

Hardware :
Raspberry pi 4
Sony A6000

Thank you guys!