Plugin Help Essentials Signs won't work even after I enabled it

I enabled my essentials signs and they will not work:

Code:

# Essentials Sign Control
# See http://wiki.ess3.net/wiki/Sign_Tutorial for instructions on how to use these.
# To enable signs, remove # symbol. To disable all signs, comment/remove each sign.
# Essentials colored sign support will be enabled when any sign types are enabled.
# Color is not an actual sign, it's for enabling using color codes on signs, when the correct permissions are given.

enabledSigns:
  - color
  - balance
  - buy
  - sell
  - trade
  - free
  - disposal
  - warp
  - kit
  - mail
  - enchant
  - gamemode
  - heal
  - info
  - spawnmob
  - repair
  - time
  - weather
# How many times per second can Essentials signs be interacted with per player.
# Values should be between 1-20, 20 being virtually no lag protection.
# Lower numbers will reduce the possibility of lag, but may annoy players.
sign-use-per-second: 4

 

@ForbiddenGaming How will they not work? Does it throw an error? Do the signs turn red? What's the issue

 

@bwfcwalshy The signs do not work at all, for example if I put [Buy], it does not turn red or do anything 1.8 essentials from Jenkins

 

Mojang changed the way signs work and the Spigot version of Essentials has not re-added essentials signs.

 

Thats news to a few thousand servers that work just fine, olie304...