The director has said they weren’t paid. I’m sure people will say he’s lying but it’s the only evidence so far of whether they were or weren’t.
Also he was “charged” twice. He paid one of them off (who described in detail his genitalia which I would say is evidence) and the second case he was judged to be innocent.
As for Robson, his first court case was thrown out because of the statute of limitations, not a lack of evidence. When he and Safechuck amended their case it was against MJJ Productions and MJJ Ventures for facilitating child abuse. For this there wasn’t sufficient evidence. It did not mean that Jackson was again found innocent of child abuse.
All this information is out there if you really want to look for it.