I'm importing several of my old sequences from LOR and creating a new channel mapping for my display because I've added and changed several props. The problem i'm having is I've got 4 channels that physically will not let me "map" or "drop" them where they are to go in my xlights channels. It also will not allow me to drop them on any other xlights channels. All the rest of the LOR channels I can drop anywhere. But those 4 channels are bupkus. The previous mapping I created for importing songs in last years show worked fine (same problem channels) and now they are stubborn. Anyone have any ideas of what I may be doing wrong?