[MC-68983] Target selector exlusion no longer works with /effect command

This command worked in previous versions of 1.8:

/effect @p[team=!herobrine,r=255] 4 10 10 true

Where mining fatigue was applied to everyone who was not a member of team "herobrine". As of the 1.8-pre1 update, this command gives the following error:

[23:58:27] The entity UUID provided is in an invalid format

I've tried all different configurations and variants of the command, but this works:

/effect @p[team=herobrine] 3

and this does not work:

/effect @p[team=!herobrine] 3

Any exclusion fails. I tried with "name=!ogradyjd" and that failed as well. Tried same selector with /msg and /gamemode and both succeeded, so this seems to only affect the /effect command.

Comments 3

qmagnet 2014-08-23T11:38:00Z

Tested in 1.8 pre1 and effect works fine for me. It's likely your team commands. I bet changing your command to

/effect @a[team=!herobrine,r=255] 4 10 10 true

may work better to.

Anon Ymus 2014-08-23T16:46:23Z

Saying that the entity UUID is invalid simply means that it couldn't find any player with those selectors.

kasamikona 2014-08-28T16:33:59Z

I THINK reason it says the UUID is in an invalid format is because, in situations where there are 0 UUIDs in the list (no players/entities with the right information were found), it actually still returns a list containing one null value. When the game tries to find the entity with the id null, obviously null isn't a UUID the game expects. Remember, this is just my guess based on experience, and may be completely wrong.