Also noticed, related to sound, that by default in this build the audio output device is defaulted to AML-M8AUDIO:ANALOG (AML: @ in config file) and I also have available AML-M8AUDIO:HDMI (AML:HDMI in config file.) I wondered if the HDMI setting should not be the default?
This will change for the next build.
koenkooi Can you try if rootwait in CMDLINE with my standard options helps booting?