Insider here. Story goes: Adam started getting pissed after Jamie kept referring to Grant as 'Chang'—but never straight to his face. Always behind his back, like 'Oh yeah, Chang says it’s cool, you can use his tools.' So people in the production were like, 'Jamie, you can't keep doing that.' And when Grant finally confronted him, Jamie turned all red and was blatantly lying, saying people were trying to undermine his 'mission' and that he wasn’t racist because—quote/unquote—'I love kung fu movies.' It was all very awkward. The show ended shortly after that