Tips & Troubleshooting

I clicked apply and got something completely unexpected

Check the two modifier settings first: Velocity Match on the Animate tab, and Direct to Keys in the Advanced section. Both are sticky and change how every apply button behaves — leaving them on by accident is by far the most common cause of surprise results.

My animation didn't change after dropping a marker

Confirm you selected the property (or its keyframes) before clicking Add Curve Marker, and that expressions are enabled — check the Expressions ON / OFF toggle on the Utilities tab.

Velocity matching makes everything bounce wildly

Velocity matching tries to reproduce the curve across every following segment. Where you want native motion (a drift), add a Native Marker so the curve hands control back to After Effects.

A segment lost its curve after I retimed keyframes

In marker mode, keep each grey curve marker at or before the keyframes it drives. In Per-Segment or Default + Exceptions mode, edits before existing curve calls shift indices; use the ＋ / − keyframe buttons (not native add/delete) when editing inside or before an existing range — or reselect and re-apply.

I renamed a slider and now markers don't work

Marker text references curves by name. Renaming the slider directly leaves markers pointing at a name that no longer exists. Use Utilities ▸ Rename Curves, which updates the slider, every expression, and every marker text together.

Scrubbing and dragging are slow

Turn off the Expression Graph Editor — it recalculates in the background.

I deleted the control layer by accident

The next apply recreates the CurveConductor layer automatically. Existing expressions that referenced its curves may need re-applying — run a Health Check.

Workflow habits that pay off

• Reach for Marker-Driven mode first — it's procedural and survives keyframe edits.
• Glance at Velocity Match and Direct to Keys before every apply.
• Keep a small library of named curves on the control layer and reuse them across a project for a consistent feel.
• Use Fit Curve to Keys so the curve you're editing lines up with the move you're watching.