Pretty sure there are many others around
I found a lovely Sadistic Love motion data by あひる＠anatroccolo www.nicovideo.jp/watch/sm17721…
but i found out that most of models behaved weird. So this is a personal reminder of what to do when i encounter a groove bone related problem.
Groove bone - グルーブ
Note: depending on the motion, it has to be EXACTLY that text. the google translate version gives グルーヴ, but its not the same, so it will not work. Different models have slightly different spelling, so you have to find the exact spelling in the .vmd file
But now it works for me.
Testing was done on a Ula Kagamine Rin White2 type, although i edited most of the models i have to be compatible with it.
Testing on MMDAgent. www.youtube.com/watch?v=Q-iNiv…
Skip to 6:07 , the one on the left is unedited, the one on the right is the edited groove bone model.
Alternative tutorial by *Trackdancer