Each chat keeps its own task graph
Two chats handing out tasks at the same time no longer overwrite each other's Graph pane. Each chat shows only the tasks it started.
When a chat hands work to helpers, the Graph pane shows those tasks and ticks them off as they finish. Bandicot used to keep one graph for every chat, so a second chat starting tasks at the same time replaced the first chat's graph, and its ticks could land on the wrong tasks.
Now every chat has its own graph. Opening a chat shows its tasks, and a chat running in the background keeps its own until you look.