That case came out very quickly. Like, the Xbox 1x was pictured one week and they had it out the next.
The issue seems to be the riser, and possibly a screw that goes into the case shorting it out. Details are scant, as they are obviously trying very hard to hide it right now.
I must say of all of the risers I have ever used they never seem to have anything anywhere near to the underside. Phantek's ones have a plastic shield under them too, and are encased in rubber.
Can't remember the last time a case was pulled from sales for something like this. Hopefully they get around to updating all these models, probably sell them under the H2 name though to avoid the H1's now tarnished reputation.