Summoned Invisible Squids Are Not Invisible

Attempts at summoning a Squid with an Active Effect of Invisibility does not work as intended as the Squid in question is not invisible.

Here is the command: /summon Squid ~ ~ ~3 {Invulnerable:1,ActiveEffects:[Id:14,Duration:50]}

Steps to replicate: Run the above command. Notice the Squid is not invisible.
Thus there being an issue.