During development and testing there may be a number of failed runs. The red X is marked on every sub-group back to the root server. Even after successful runs, it seems that the red X remains. It does eventually go away. I am unsure whether this is based on the number of successful runs or time or something else.
The problem is exacerbated when the group has several jobs which are triggered by other jobs. A classic example might be extractjob > transformjob > loadjob. There might be many sets of this for a data integration project.
It would be helpful to be able to clear out the history and, optionally, reset statistics for all jobs in the group. Optionally, clear and reset recursively through subgroups. This make it more clear that everything is starting from the beginning.
There should be a way for an administrator to disable the clearing of history and statistics reset for a group. Most organizations would (should) require this for any production group jobs.
I would expect that running jobs could not have current history and statistics reset. Perhaps previous history could be cleared and statistics set so that only the currently running job is considered.