As of cylc-flow 8.6.2 and cylc-uiserver 1.8.2, the workflows sidebar in the GUI now displays indicators for held and retrying tasks.
These icons will show if there are any held or retrying tasks in the active window (i.e, if you hold a task ahead of the workflow, the icon will only display when Cylc reaches the task and its held status begins to impact the workflow).
This follows on from other recent changes to the workflows sidebar, see:
For the full post, see:
