Multicast Group ID changing during execution

[aburbanoa]

When performing a simulation of a P2MP D2D multicast scenario the following error occurs:

"LtePhyBase::sendMulticast - Error. Group ID %d is not valid."

¿Is there any reason for a multicast group ID to change during execution or is this a potential bug?

[wischhof]

Could you provide some more details which would allow to reproduce the problem? (Which simulation configuration within which ini file, run, parameters did you use, etc.)