Sorry that I'm not an English speaker, so my explanation might be hard to understand. I had that exact same symptom a while ago, and found out that it was caused by compatibility error with some tools you pre uploaded through VCC. what I was having compatibility error was "Hai~ Combo gesture expressions" and other Hai~ series tools. I recommand you to try removing some tools that you do not need right now. Also after importing PCSS unity package in to your scene, if you move the location of the nHaruka folder, it emmits error when setting up PCSS on to your avatar, so just leave it as where it is as you imported. I hope it helped out your problem, if it did not I'm so sorry. Also I want to thank you for sharing all the good stuff you uploaded. Sorry for the messy English. I hope you fix your problem, good luck.