How much did you get it for?

Bought one brand phison. Does the job.
Actually, the bracket can support NU8000 as the tv is lighter than my previous plasma. It just that it is shorter as it was intended for 55" TV.
Went ahead and bought phison brand bracket, installed on the same spot as my previous bracket and it does the job very well.

Trying to get ARC to play well with HTS is a nightmare.

Yeah, price difference a lot between sellers. I initially went to a store near my place the cheapest they sold (same model) is RM94 and others as high as RM135! Looked on shopee and went ahead to COD with a seller in Penang for RM48.
I got ARC working. Cheap and expensive cable doesn't make any difference, I tested.

I use LG BH7530TW HTS. It got 2 HDMI IN port and 1 HDMI OUT.
I have an android box and hypptv connected to a hdmi switch, this switch then connected to LG HTS HDMI IN 1.
I also have a PS4 connected to TV's HDMI 3.

So, what weird is if I turn on either android box or hypptv, then I will have arc working. So now, when I want to play PS4, I will need to also turn on the android box to get ARC.

Tell me your setup, maybe I could help.