[taskflow] Taskflow hangs with graph_flow with 50 tasks

Hi, In the watcher project, taskflow is used to execute actionplans which are composed of actions (taskflow tasks) with certain dependencies between them. We have found that taskflow has problems when actionplans start having problems when having parallelization >=2 around 35 actions and with 50 actions can take up to 45 minutes to find the next task after the first is done. Is anyone having this kind of scalability issues with taskflow? I've reported the issue in https://bugs.launchpad.net/taskflow/+bug/2139228 and provided a minimal reproducer with only taskflow. Any help or recommendation about a different way to implement it is appreciated. Alfredo