Keyframe animation restarts when reloaded

Partner Rank:
3

Verification builds:
Beta 1.12.9  2327703

Summary:
Keyframe animations restart when the entity gets reloaded.

Impact:
Players reloading an entity restarts it’s animation which breaks the  This severely limits the ability to use animation to create cutscenes

Repro Steps:
Download MCM-687 world from Greg
Load up the world and fly to 0 10 0
Type /Summon noxcrew:fw.worm_dead ~ ~10 ~ and wait for the animation to stop
Fly away from the entity until it unloads
Fly back towards the entity
Observe the animation replays

Observed Results:
Keyframe animations play from the start when they are reloaded.

Expected Results:
Keyframe animations pause when unloaded and continue when loaded.  

Screenshots/Videos attached:
No, a world file can be obtained within the mco_noxcrew slack channel 

Notes:
This becomes an issue for when animations are used for cutscenes/cinematics. If players join later than others, or they return after it has began playing,  it can desyn any animation which has been timed up with either audio or entity position.
Within the content we are currently developing this causes part of the death animation to replay if a player returns which causes confusion.  

Regression Builds:
Since inception