I'm using the latest spigot on me and my friend's server, and we're not able to use /entitydata and /blockdata properly.

Commands:
/entitydata @e[r=2]

{NoGravity:1}

for armorstand that I accidentally made
/blockdata ~ ~-1 ~

{Lock:"LockTest"}

For testing the "Lock" data tag on a beacon.

Error: The entity UUID provided is in an invalod format
Makes no sense to me, as the commands both work in vanilla.