Right clicking sign text doesnt seem to execute a command.

Rproduction steps:

1: place a sign and apply the following NBT data to it: {Text3:"{\"text\":\"\",\"extra\":[{\"text\":\"[+]\",\"color\":\"green\",\"bold\":\"true\",\"clickEvent\":{\"action\":\"run_command\",\"value\":\"/setblock -107 69 -9 redstone_block\"}},

{\"text\":\" \"}

,{\"score\":

{\"name\":\"Bombs\",\"objective\":\"data\"}

,\"color\":\"black\"},

{\"text\":\" \"}

,

{\"text\":\"[-]\",\"color\":\"red\",\"bold\":\"true\"}

]}"}

2: Right click the [+] text

3:goto -107 69 -9