I have download talk groups to my scanner. Before doing that I assigned them to scan list 1 and 2 respectively. Later I tried to download some conventional frequencies. I assigned them to scan list 3. However, when I downloaded the frequencies the talkgroups in 1 and 2 disappeared. When I tried to replace them the conventional frequencies in 3 disappeared. What am I doing wrong? Before downloading I assigned scan lists with the RR software. Thank you.