A BUG that can't be NULL for CooldownSoundPlayerPlugin

[SeaDragon]

2018.01.04 16:01:06.648	OnCooldownExpired exception (System.ArgumentNullException: 值不能为 null。
参数名: key
   在 System.Collections.Generic.Dictionary`2.FindEntry(TKey key)
   在 System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value)
   在 Turbo.Plugins.Default.CooldownSoundPlayerPlugin.OnCooldown(IPlayerSkill playerSkill, Boolean expired)
   在 Turbo.Basic.PluginManager.*​‬​‪**‎‏‏​​‏*‬‏‬**‏‎*‬‎*‫‬*.*‎‫‫​**‪*‏**‏​​‎*‫‏‬‬*‪‫*()
   在 Turbo.Basic.PluginManager.‎​‪‪**‎*‫‬**‪‎‬‏**‏‫‎‫***(IPlugin , String , Action )
   在 Turbo.Basic.PluginManager.‫*​*‬‪‪‏***‎‫​*‎*‎**‫‪*‪‏‪*(Object , IPlayerSkill )
   在 Turbo.Collector.Actors.ActorCollector.‬‎​***​‫*‎*‬*‪‎‏*‎*​‬‫*(‫*****‫*‎‪‎‎‏​**‎*‪*‪‪**** ))
2018.01.04 16:04:46.402	OnCooldownExpired exception (System.ArgumentNullException: 值不能为 null。
参数名: key
   在 System.Collections.Generic.Dictionary`2.FindEntry(TKey key)
   在 System.Collections.Generic.Dictionary`2.TryGetValue(TKey key, TValue& value)
   在 Turbo.Plugins.Default.CooldownSoundPlayerPlugin.OnCooldown(IPlayerSkill playerSkill, Boolean expired)
   在 Turbo.Basic.PluginManager.*​‬​‪**‎‏‏​​‏*‬‏‬**‏‎*‬‎*‫‬*.*‎‫‫​**‪*‏**‏​​‎*‫‏‬‬*‪‫*()
   在 Turbo.Basic.PluginManager.‎​‪‪**‎*‫‬**‪‎‬‏**‏‫‎‫***(IPlugin , String , Action )
   在 Turbo.Basic.PluginManager.‫*​*‬‪‪‏***‎‫​*‎*‎**‫‪*‪‏‪*(Object , IPlayerSkill )
   在 Turbo.Collector.Actors.ActorCollector.‬‎​***​‫*‎*‬*‪‎‏*‎*​‬‫*(‫*****‫*‎‪‎‎‏​**‎*‪*‪‪**** ))
2018.01.04 16:09:47.130	OnCooldownExpired exception (System.ArgumentNullException: 值不能为 null。

[JarJarD3]

Why playerSkill.CurrentSnoPower can not be NULL?
IMHO it can and the call stack kind of verifies this.

I noticed (maybe similar) behavior with player.Powers.SkillSlots, the array is OK but its content can contain NULL values as the player does not have all the skills yet.