I’m using the S4 Mk II with a MacBook Pro and have had no issues with it. Having run it for several hours at a time I haven’t had any of the issues you’ve faced.
Just downloaded the new updates and haven’t had a chance to run it since but I suspect you have a bad power supply. It can be something Ive come across before in electronic gear where when the internal temps get up to a certain level a resistor or capacitor overheats and things stop working properly.
You might try setting the unit on a laptop cooling desk… the kind that has fans built into the unit and keep the laptop from getting hot. They run off USB
Either that or simply elevate the S4 and get some airflow around it somehow.
That may seem silly but it’s a cheap way to figure out if it’s heat related.
Hope it helps,
Tony
tonyg656@aol.com
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