PIM problem

Hello,
I’m trying to fight with PIM routing but I have very bad feelings about that ( actually I try to send multicast over some VPN ) but each time after some time router hangs out ROS 5.26 on vmware ( i know that it is wrong but have to be by now ) does ROS6 helps something with it? Does MT have problems with this?

another question which VPN will let me to send multicast over it? All of them or only some?