Why does Use Cached Pose return last frame's pose?

Cached pose evaluates lazily on first use per frame. If you Save Cached Pose in one branch and Use Cached Pose in another that runs first in the schedule, you get stale data.

How is the order determined?

By topological order of the anim graph. Save Cached Pose must come before any Use Cached Pose nodes in the evaluation order. State Machine outputs may evaluate later than expected.

Multi-threaded animation evaluation?

USE_MULTI_THREADED_ANIM_UPDATE: cached poses must be reachable from the same thread context. Don't try to share between graphs running on different worker threads.

Fix: Unreal Anim BP Cached Pose Stale

Quick answer: Save Cached Pose must topologically precede Use Cached Pose in the same graph. Place the saver upstream of the consumer.

Aim offset blends a base pose. Aim graph runs first, samples the cache — gets last frame because base hasn’t saved yet this frame.

The Symptom

Movement appears one frame behind aim direction or vice versa. Visible during fast-direction-change tests.

The Fix

AnimGraph (top-down evaluation):

  [Locomotion StateMachine] → Save Cached Pose "BasePose"
                                            |
                                            v
                                    Use Cached Pose "BasePose"
                                            |
                                            v
                                    AimOffset Blend
                                            |
                                            v
                                    Output Pose

The save node must be in the chain reaching the output, before the first use. If the save is on an unused branch, it never executes — cached pose stays empty.

Verifying

Print bone transforms each frame from cached pose — values match the StateMachine output of the same frame, not last.

“Save before use. Same frame. Pose fresh.”

Related Issues

For state alias, see state alias. For replication, see replication.

Save first. Use second. Frame fresh.