I'm seeing this issue as well. I have a group of about 30 and we get the V125 error, and then after that, 5 seconds later, the group starts playing. They need to update their delay logic.
Ideally, I would like to pick a show within a group, and the Tivo to continue playing the rest of the group after it finishes the show. So I pick the 8th show in the list/group...after it finishes, it plays show 9, 10, etc... This would solve everyone's problem I believe.