Error on adding grass output

[Denis Pahunov]

IndexOutOfRangeException: Array index is out of range. MapMagic.GrassOutput+<Apply>c__Iterator2.MoveNext () (at Assets/MapMagic/Generators/OutputGenerators.cs:1305) MapMagic.GeneratorsAsset+<Apply>c__Iterator2.MoveNext () (at Assets/MapMagic/Main/GeneratorsAsset.cs:423) MapMagic.Chunk+<ApplyRoutine>c__Iterator0.MoveNext () (at Assets/MapMagic/Main/Chunk.cs:200) Plugins.ThreadWorker.CoroutineFn () (at Assets/PluginTools/ThreadWorker.cs:572) Plugins.ThreadWorker.UpdateApply () (at Assets/PluginTools/ThreadWorker.cs:212) Plugins.ThreadWorker.Refresh () (at Assets/PluginTools/ThreadWorker.cs:137)