Bukkit

What steps will reproduce the problem?
1. Create gamestart sign
2. start the game
3. the game ends
4. the game start again
5. new signs are generated with same text but they are rotated a bit
6. signs does not transform into redstone tourches (or whatever it is) and the redstone is not activated

What what do you expect to happen?
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What do you see instead?
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What version of the MyHungerGames are you using?
Build #43

What version of CraftBukkit/Spigot are you using?
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Paste the files related to your problem (log/permissions file/config.yml) on pastebin.com and link it.
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Please provide any additional information below.