[ALL] Sierra 10.12 - VST2 plugins load as black windows ?

Can anyone running Sierra (10.12) confirm any of MTRE/SPHE/S37E VST2 plugins load and show up normally in Cubase ?

My tests show they may load as black/blank windows, both in AMD and nVidia based macbooks. VST3 loads up normally. Can you see any similar behavior ?

Any feedback would be appreciated !