Two FileStream(VLC) + Mix(Texture) -> Strange image why?

Hello,
I want to use Mix(Ex9.Texture) from two fileStream(VLC).
but it didn’t.
After I rightclicked + Alt button on Mix(Ex9.Texture), it has been well.
but I can’t Alt+RightClick whenever I open patch.
I think this is bug of VLC.
Do you know solution?

edit.

ok i made it work with this Control Texture switch… no idea why but it works

@gltshhh, Thank you!
OnOpen+Delay+Switch would be solution.