Yeah, an Aura HD would definitely fall into the "could have a slightly buggy kernel" bin
.
I'l see if I can reproduce on my H2O, which runs a fairly similar kernel (
Linux (none) 2.6.35.3-850-gbc67621+ #3032 PREEMPT Mon Jan 9 13:37:40 CST 2017 armv7l GNU/Linux).
In any case, there's probably nothing much we can do about it, and the fact that it recovers on its own is already a pretty nice surprise to be honest
.
EDIT: Can't repro over here anyway
.