Rom Hook :
It's not an "Off-brand devise". KB Paradise is a little known brand that sells some high quality and expensive keyboards.
There's a difference between "little known brand" and "off-brand". In this case, the company doesn't even have a website, and makes 100% of sales though low distribution SMB exclusively. That's about as off-brand as you can get before getting into the generic market.
Rom Hook :
Seams like the space bar key cap problem. Take it off and see if the switch under it works as it should.
Good idea to check, though it would basically just confirm that the keyboard either wasn't sent through even a semblance of QC or that their device is weak enough to become unseated because of it. Since it's a new keyboard, you should still get it replaced rather than try "fixing" it yourself.