Particles don't behave the same /particle vs bound to entity

Partner Rank:
3

Partner Team Reporting:

Spark Squared

Verification builds:

1.11 windows 10, 1.12 beta's windows 10

Summary:

Custom Particles are not behaving the same when displayed trough /particle versus them bound to an entity

Impact:

Causes us to have to spend extra time finding work around resulting in extra entities in the world.

Repro Steps:

1. Add Resource + behavior pack to the world (provided to Gregg in slack)
2. Spawn entity.spark:world.... and right click with sugar
3. Wait for the particle to appear when the entity is done with animation
4. type /particle bug:report
5. notice the particle doesn't behave the same

Observed Results:

the same particle behaves differently in the 2 cases

Expected Results:

The particle should behave consistently

Regression Builds:

never worked for new entities