I spotted that sometimes the task status wasn't getting through to the task component in the table view (edit also spotted in the tree view, looks like a cylc-flow data store issue).
This results in a job in an active state associated with a task which appears to be in the waiting state:

But actually isn't:

Running the example in #1634, this appears to crop up fairly regularly.
I have only seen this in the table view so far.
Replicated with 2.3.0 and on master.
I spotted that sometimes the task status wasn't getting through to the task component in the table view (edit also spotted in the tree view, looks like a cylc-flow data store issue).
This results in a job in an active state associated with a task which appears to be in the waiting state:
But actually isn't:
Running the example in #1634, this appears to crop up fairly regularly.
I have only seen this in the table view so far.
Replicated with 2.3.0 and on master.