Pre-Caching can be used to avoid animation streaming problems at the start of a sequence.
The "PrecacheTrigger" input on the Animations:PlaySequence node will precache all animation data that is needed to play the first two seconds of the sequence.
Simple pre-caching setup using two triggers.
Optimally pre-caching is triggered about 4-5 seconds before the sequence starts playing. However, in some cases shorter pre-caching times work just as well.
The slowest platform will be decisive for determining the time that is needed. Ideally this is a console with disc emulation enabled, or even better a console with a proper game disc.
The pre-cached animations will remain in memory until the scene gets played.