Step by step

1. Save a copy and note the action that triggered the problem.
2. Check whether you are in Designer or Parameter Graph preview and which object/tab is active.
3. Use Project Browser to inspect the object hierarchy; inspect graph filters and collapsed layers separately.
4. For an imported graph, allow preparation to finish. Focus should centre the card after loading, not interrupt a partial render.
5. If a rule is wrong, inspect its inputs and test both IF branches. For expensive previews, temporarily use manual preview.
6. If the issue persists, provide the project JSON, exact steps, app version and relevant generated Python or diagnostics.

Missing or grey graph cards

Filtering, hidden cards, removed bindings and genuinely deleted Designer objects are different states. Do not treat a graph filter as geometry deletion. A deleted Designer primitive should not leave an active object binding behind.

Visibility

Parameter preview hide/show should restore the prior Designer visibility on exit. Isolate and layer settings are separate intentional visibility controls.

Selection and motion

Selection highlights should track the moving object. Camera orbit/pan does not change model coordinates. If a highlight freezes or movement remains slow, capture the model and exact interaction.

Cold Focus

If Focus takes a long time on a newly imported model, allow the model and canvas to finish loading. Change the selection or tab, or leave the graph, to cancel. Report repeated freezes with diagnostics.

Keep in mind

• Record whether other controls still respond and whether preparation is progressing.

Keep building