Quick answer: Unreal Niagara CPU system reading its component's position during Tick reading stale value? Tick fires before transform updates; read in post-tick callback.
Particle trail attached to player; trail lags behind by one frame.
Post-tick callback
Bind to OnSystemFinalize; read final position. Trail accurate.
Or set tick group to post-update
Niagara tick after movement update. Read in tick.
Audit tick order
Movement and VFX tick order; document.
“Tick order is the bug surface. Sample later in the frame.”
If your VFX lags movement, the tick group is the first suspect. Audit; reorder.