I can confirm that when configuring the X6 and i30 with the default templates, the video works even though you see the option set to "none" (with our latest firmware on both devices)
After a reboot, the very first call of the i30 might not have video. The second call will work correctly. Do you also use an i30 doorphone?
Yup, seems to be a quirk with the Fanvil doorphone, I suspect it needs at least one call to collect some network information and then it works fine every time.