How to Fix Jittery Imported Animation from a Wrong Resample Frame Rate in Unity

An animation that played smoothly in your DCC tool can stutter once imported. Unity resamples animation to match its frame rate, so a mismatch between the authored rate and the import causes keys to land off the intended frames, producing visible judder.

How to fix it

1. Match frame rates

Export the animation at the same frame rate it was authored (commonly 30) and confirm Unity's clip Sample Rate matches. A mismatch forces interpolation that introduces stutter.

2. Reduce redundant keys

Set Animation Compression to Optimal or Keyframe Reduction with sensible error tolerances. Removing near-duplicate keys smooths playback and shrinks the clip.

3. Bake only what you need

If you bake every frame from a DCC tool, ensure the bake rate matches the engine. Over-sampled curves give Unity conflicting keys that read as micro-jitter.

Catching the ones you can't reproduce

The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.

Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.

This is where a tool like Bugnet earns its place. Its SDK captures every Unity error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.