Illegal forward handling

[Forksref]

I had this play several years ago in a JV game. The play was designed to have both the QB and running back have their hands on the ball at the same time. This worked fine for many plays until one time they got beyond the line of scrimmage and the running back got ahead of the QB. The QB then released the ball to the running back and we flagged it for illegal handing. The wing and I (WH) both flagged it.