Task Running Timeout
An option under Task properties to enable a timeout after x time so that tasks that get stuck due to actions without timeouts or whatever the reason. This will essentially end the task regardless of its status so other tasks that are Q'd up can proceed without incident.
When third party plugins are involved, and even some native Tasker actions, often times errors will result in tasks never completing and end up stuck in an indefinite run state even when "Continue Task After Error" is selected. If the action doesn't throw an error, then it'll just keep trying to execute the action with no way to stop it automatically. This is a solution to that problem.