Hi,
In the past, you could summon an entity and then summon a snowball or something inside
/execute @e[score_aggro=0] ~ ~ ~ summon Snowball ~ ~1 ~
it colided. Now the snowball just fall to the ground without interacting with the entity.
Korko
Linked issues
Comments 2
Possibly Invalid. As far as I can tell, in major release versions, summoning a projectile inside a mob, using the command provided, never did interact.
If you're sure it did, @unknown, perhaps put in the description a version where it did used to happen, and re-test your command to make sure it's correct – so we can reproduce both the 'old' and the 'new' behavior.
Is this still an issue in the most recent versions (currently that is 1.10.2, or 16w42a) of Minecraft? If so, please update the affected versions and help us keeping this ticket updated from time to time.